Library and Archives
Library and Archives - Archives
Decrease font size
Increase font size
1 2 >> Next
October 14, 2015
The Great Melbourne Telescope

The IET Archives has an ongoing multi-year project to conserve a collection of pamphlets known as the S P Thompson pamphlets. These pamphlets, covering a multitude of scientific and engineering subjects, came to the Institution of Electrical Engineers along with Silvanus P Thompson’s library of rare books in the first part of the 20th century, several years after S P Thompson’s death in 1916. Not only are many of the pamphlets exceedingly rare, but they often have letters within, as S P Thompson used to insert his correspondence, from leading scientists and engineers of the day, within a relevant pamphlet or book.


As a result of the fragility of these pamphlets and their poor general condition, the IET Archives only begins work on researching, cataloguing, and digitising the pamphlets once they have been conserved and can be handled more easily. The image below shows a volume of unconserved pamphlets which is titled, ‘Electric Discharges I’.

Unconserved documents


Despite many volumes of pamphlets being conserved over the years since they came into the possession of the IEE, each volume on a specific subject containing around 30 to 50 individual pamphlets, there remain several hundred volumes of unconserved pamphlets still to be worked upon. We usually manage to conserve around 3-5 volumes each year given the time consuming and expensive process of conservation.


Recently we received 4 volumes back from the conservators including one volume labelled, ‘Telescopes I’ and another labelled ‘Telescopes II’. The pamphlets and catalogues within shed light on a wonderful project called the Great Melbourne Telescope. An image of the conserved volume ‘Telescopes I’, with each conserved pamphlet individually protected, is shown below’.

Conserved documents


The Great Melbourne Telescope


The Great Melbourne Telescope (GMT) was built by Thomas Grubb in Dublin, Ireland in 1868, and installed at the Melbourne Observatory in Melbourne, Australia in 1869. The illustration below, showing the GMT, is taken from a pamphlet found in Telescopes I which records Howard Grubb’s lecture to the Royal Dublin Society in 1869 (Sir Howard Grubb was one of Thomas Grubb’s 8 children and joined his father’s firm in 1864).

Illustration of the Great Melbourne Telescope


The telescope had a 48-inch diameter speculum primary mirror, and was mounted on an equatorial mounting, enabling it to track stars accurately as they appeared to move across the sky. The design had been approved by a committee of British astronomers and scientists. At the time of commissioning it was the second largest telescope operating in the world, after Lord Rosse’s 6 foot reflector at Birr, Ireland, and it was the largest fully steerable telescope in the world.


The telescope was designed to explore the nebulae visible from the southern hemisphere, and in particular to document whether any changes had occurred in the nebulae since they were charted by John Herschel in the 1830s at the Cape of Good Hope.


When Melbourne Observatory closed in 1945 the GMT was sold to the Australian Government’s Mount Stromlo Observatory near Canberra where it was rebuilt in the 1950s with a modern drive and a new 50-inch pyrex mirror. In 2003 a bushfire destroyed the telescopes and buildings at Mount Stromlo and afterwards the remnants of the 50-inch telescope were transferred to Museum Victoria, which had previously acquired discarded parts of the original telescope in 1984.


Restoration of the Great Melbourne Telescope


A project is now underway to restore the Great Melbourne Telescope to working order so that it may be used for educational and public viewing at its original home at the Melbourne Observatory. The project is a joint undertaking between Museum Victoria, the Astronomical Society of Victoria and the Royal Botanical Gardens. A link to the project’s website can be found here - The Great Melbourne Telescope.


Once the IET Archives became aware of the GMT project we contacted some of the team members to let them know about some ‘Grubb pamphlets’ that had been discovered in Telescopes I. We thought that they might be of interest, if they didn’t already have access to the pamphlets, particularly as the pamphlets contained many technical details about the telescope. The GMT project didn’t have these pamphlets or copies of them amongst its papers and so we were happy to supply digital copies of 5 pamphlets to the project team. The pamphlets supplied were;


‘Royal Dublin Society: afternoon scientific lectures: the Great Melbourne Telescope: a lecture by Howard Grubb CE, May 29 1869’. 17pp.

‘The Great Melbourne Telescope: an examination of and reply to the official reports from Melbourne respecting the instrument, its erection at Melbourne, etc, etc: by Thomas Grubb FRS’. 20pp. This pamphlet was for private circulation only.

‘Telescopic Objectives and Mirrors: Their Preparation and Testing: A Discourse by Howard Grubb delivered as The Royal Institution, April 2 1886’.

‘Report of the Committee on the Melbourne Telescope to the President and Council of the Royal Society’. Dated 19 February 1868.

‘Telescopes for Stellar Photography’, by Sir Howard Grubb. Lecture and following discussion given by Sir Howard April 18 1888 at the Society of Arts.


Museum Victoria kindly supplied us with two recent photographs related to the project (photographs taken by Rodney Start), one of which is shown below.

GMT project image


Museum Victoria also has many 19th century images related to the GMT which can be seen on its website here - GMT Images.


The volume titled Telescopes I included many other interesting pamphlets and catalogues, not just Grubb related material, including a 19th century pamphlet by the German Astronomer Heinrich Louis d’Arrest (1822-1875) which included the plate shown below.


Plate showing the Great Melbourne Telescope

Telescopes I and all the other conserved volumes from the SPT pamphlet collection are held permanently in the strongroom at the IET Archive Centre, Savoy Hill House, and are available for researchers to view by appointment.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 14 October 2015 02:40 PM     Archives     Comments (0)  

September 22, 2015
Reflections from 1947 Concerning Princess Elizabeth and her Future

After the recent celebrations concerning the length of the reign of Her Majesty Queen Elizabeth II, we have delved back into the IET Archive collections to uncover a fond tribute to the young Princess Elizabeth which occurred in 1947 on the occasion of her engagement to Lieutenant Mountbatten.

The tribute came in a radio broadcast by Dame Caroline Haslett which was heard on the BBC’s Women’s Hour, 10 July 1947 (Women’s Hour, still running today, was first broadcast in October 1946). Dame Caroline became the 1st Secretary of the Women’s Engineering Society in 1919 and was latterly its President in 1941. From 1946-1954, covering the time of the broadcast, Dame Caroline was the only woman member of the Council of the British Institute of Management. In addition, from 1947-1956 she was also the only woman member of the British Electricity Authority. The Caroline Haslett collection can be consulted in the IET Archives (archive reference NAEST 33).

Dame Caroline met the British Royal Family on many occasions through the various offices that she held and her high regard for Princess Elizabeth can be read in the broadcast script.

The two images below show Princess Elizabeth, the year before the broadcast, with her grandmother Queen Mary during an industrial visit to Battersea Power Station in April 1946, a visit that is referred to in the broadcast script.




Dame Caroline Haslett’s Script

Dame Caroline’s script which is reproduced in full below, discusses the life of the young Princess whilst she was growing up, mentions her interest in industry, and describes some of the visits with which the Princess was involved. Finally Dame Caroline sends ‘loyal and loving wishes’ to Princess Elizabeth and expresses her certainty that the newly engaged couple will ‘carry on and uphold all that is best in the great traditions of our country’.

Almost 70 years after the original broadcast, with Queen Elizabeth still working tirelessly for the country, Dame Caroline, had she been alive today, would no doubt be overjoyed to see that her certainty in 1947 had been so well founded.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 22 September 2015 03:26 PM     Archives     Comments (0)  

September 9, 2015
Commemoration of Royal Events in the IET Archives

Today, with the reign of Her Majesty Queen Elizabeth II surpassing the length of Queen Victoria’s reign, we have taken the opportunity to look through the IET Archives collections to see how the IET’s predecessors and other organisations commemorated notable royal events.

Celebration of Royal Events by the Institution of Electrical Engineers

In 1977 on the occasion of Queen Elizabeth’s Silver Jubilee, the IEE’s General Purposes Committee (GPC) was tasked with investigating ways of commemorating the Silver Jubilee. Its recommendation was that three undergraduate scholarships were to be awarded annually to mark the event. The relevant paragraph from the GPC report to the March 1977 IEE Council is shown below.


Later that year, in October 1977, the Chief Executive of the City of Westminster, David Witty, approached the IEE about donating a special seat to commemorate the Jubilee which the Council had available for erection along the Embankment in London. This resulted in the IEE donating two seats and the photograph below shows one of the two seats shortly after installation.



Going a little further back in time on the occasion of the coronation of Elizabeth II in June 1953, the following photograph shows that the IEE chose to mark the event by displaying all the Commonwealth flags on the top of its building at Savoy Place.



Celebration of Royal Events by the Institution of Production Engineers

Another of the IET’s predecessor organisations, the Institution of Production Engineers (IProdE), celebrated royal events in a different manner. The IProdE was formed in 1921 and changed its name to the Institution of Manufacturing Engineers in 1991 shortly before its merger with the IEE also in 1991. The IProdE celebrated both the Coronation of King George VI in 1937 and the Silver Jubilee of Queen Elizabeth II in 1977, by producing illuminated manuscripts for the respective monarchs which also showed the institution’s seal. The IProdE made copies of these congratulatory messages and framed them together with the letters received, in each case from the Home Office, which conveyed their Majesty’s thanks. The framed copies are shown below.


Celebration of Royal Events by the Electrical Association of Women (EAW)

Perhaps the most unusual way that a royal occasion has been celebrated can be seen in the EAW collection held by the IET Archives (archive reference NAEST 93). The EAW chose to celebrate the occasion of the marriage of Princess Elizabeth to Prince Philip in November 1947 by presenting her with an electric blanket – probably still quite a novelty in 1947.

Princess Elizabeth sent a very warm personal letter in response addressed to Dame Caroline Haslett, who was at that time a Director of the EAW. Elizabeth mentions in particular the monogram embroidered by the students of The School of Stitchery and Lace. The EAW arranged for a photograph of the blanket to be mounted together with the reply from Elizabeth and this is shown below.



Today we celebrate this special day in history by highlighting some of the royal correspondence in the IET Archives that reflects the high regard in which the royal family has been and continues to be held.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 09 September 2015 11:37 AM     Archives     Comments (0)  

August 12, 2015
Perpetual Motion in the IET Archives

Further research on a letter and postcard from 1914 has not only uncovered the letter writer, Robert B Clifton, Professor of Physics at Oxford University from 1865 to 1915, but also brought to light an interesting story about a ‘perpetual motion machine’.

Background to the Letter of 31 August 1914

In this letter R B Clifton, who is writing to Professor Silvanus P Thompson, is clearly answering earlier questions put to him by Thompson about the ‘perpetual motion’ machine, also called a ‘toy’ by Clifton which was held at Oxford University’s Clarendon Laboratory.

This perpetual motion machine is still housed at Clarendon today and is known as The Clarendon Dry Pile or The Oxford Electric Bell, a pair of voltaic ‘dry piles’ connected to two bells which have been ringing at Oxford since it was set up in 1840. Here is a link to Oxford’s online exhibition about The Clarendon Dry Pile including an image - Clarendon Dry Pile 

The Letter of 31 August 1914

In the letter, Clifton discusses The Clarendon Dry Pile as follows;

“In 1870 it had to be moved from the Museum to the Clarendon Laboratory and I carried it myself. It was working when I took it from the old house & it started gaily when I put it down in its new home. Since October 1870 it has not been touched and has never stopped action.”

Clifton goes on to say;

“Of all the toys I have ever seen ours is the only one in which the piles are insulated by a covering of sulphur.”

Perpetual Motion Machines and Toys

Perpetual motion, a motion that continues indefinitely without any external source of energy, is impossible due to friction and other sources of energy loss. However, purported perpetual motion machines that could work forever without an energy source and perpetual motion experiments were very popular as ideas/concepts in the early to mid-19th century. Clifton, in his letter, discusses some of these toys, and says;

“When I was at school in Brighton (1846-51) there was a toy of the same type as ours which interested me greatly – it was in the shop corridors of Noakes Chemist etc, North Street, and if I remember right it bore the names of Watkins and Hill as makers. After about 1850 I was often in Watkins and Hill’s shop at Charing Cross – the old shop before Elliott Brothers took the business and moved into the Strand. There I met an elderly man who, as I was told, had made a great lot of these toys, but I cannot recall his name. I have seen several of them in various places but I think our specimen must be nearly the last, perhaps actually the last survivor.”

I believe Noakes’ spider – a spider moving over a web, died before I left Brighton for I have a distinct recollection of grief at the loss of an old friend”.

In his subsequent postcard of 1 September 1914, Clifton mentions another ‘dry pile’ as follows;

“Since I finished my letter I have looked at a Bohnenberger Electroscope supplied by Watkins & Hill to a friend of mine who gave it to me many years ago. The piles, no doubt made by the same man that made those at the Laboratory, are still charged so that the instrument works fairly well when the leaf is a full inch from a terminal of each pile”.

A Bohnenberger Electroscope can be found in Florence’s Museo Galileo and an image and description in English can be found here - Bohnenberger Electroscope.

A Mystery Resolved

Knowing the above story – it becomes very clear why the letter and postcard were stored by S P Thompson in the particular book where the items were found. The book from which the items came was 'Della Pila Elettrica a Secco. Dissertazione dell' Ab. Giuseppe Zamboni' or ‘The Electric Dry Pile. Dissertation’, by Giuseppe Zamboni (1776-1846), published in Verona in 1812. The Zamboni pile was an early electric battery invented by Giuseppe Zamboni in 1812. Images of the title page and figure 1 from this book showing Zamboni piles are shown below.




Who Was Robert B Clifton?

R B Clifton (1836-1921) was the Professor of Experimental Philosophy at Oxford (effectively the Professor of Physics). According to the book ‘Physicists Look Back: Studies in the History of Physics’, edited by J Roche, Clifton was, ‘elected on the basis of one original paper of which he was the junior author and because of the reputation of the excellent lectures he gave as a Professor of Physics at Owen’s College, the forerunner of the University of Manchester’. The book also mentions a, ‘widely accepted view’, that Clifton was chosen by the Electors to the Chair in preference to Hermann von Helmholtz (1821-94) and comments that Clifton had no interest in research, so that during his professorship, there was practically no research at the Clarendon Laboratory.

Experimental Philosophy was first examined as a degree subject at Oxford in 1850 and the Reader, then the Reverend Robert Walker, was promoted to Professor in 1860. Robert Clifton took over from Walker in 1865 and held the office until 1915, the year after this letter and postcard were written. Clifton designed the original Clarendon Laboratory, which was built by 1872 and was the first purpose-built physics laboratory in the British Isles. Further information about the history of Physics at Oxford University, the Clarendon Laboratory and Clifton can be found on the Oxford Department of Physics history web pages here - History of Physics at Oxford.

Where Did the Letters Come From?

The habit of S P Thompson to enclose his correspondence with authors, scientists and engineers within books and pamphlets in his library, now in the possession of the IET, has been mentioned in earlier blogs. This letter and postcard written in 1914 by R B Clifton and sent to S P Thompson had been put to one side in the archives some time ago for further investigation as the writer of the letter and postcard had not been determined at that time. A note kept with the items mentioned the book in which the letter and postcard had been found. Not only is this important for tracking the provenance of an item but also the book forms a very interesting part of the story.

The letters were recently recalled from storage and further work uncovered the author of the letter and postcard. Comments made within the letter such as the fact that Clifton had come to Oxford in 1865 and that his predecessor was the ‘Reverend Robert Walker (elected 1839)’, enabled the pinpointing of Clifton as the letter writer, and the signature at the end of the letter in hindsight is very clearly that of R B Clifton. The letter and postcard have been catalogued as items SC MSS 3/A/207 and SC MSS 3/A/208 respectively and can be consulted in the IET Archives.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology

Edited: 12 August 2015 at 02:40 PM by Jonathan Cable


    Posted By: Jonathan Cable @ 12 August 2015 02:22 PM     Archives     Comments (0)  

August 4, 2015
The History of Computing - Tabulating Machines

The IET Archives recently received a donation of 6 booklets dating from the 1920s to 1940s covering the subject of tabulating machines which give a fascinating insight into the history of computing and also the forerunners of the well-known computing companies IBM and ICL.

What are tabulating machines?

The tabulating machine was an electromechanical machine designed to assist in summarizing information and, later, accounting information. The machines used punched or perforated cards to add numbers coded on those cards. A typical punched card is shown below.



Invented by Hermann Hollerith, the machine was developed to help process data for the 1890 US Census. It led to a class of machines, known as unit record equipment, and the data processing industry. The term ‘Super Computing’ was used by the New York World newspaper in 1931 to refer to large custom-built tabulator that IBM made for Columbia University.

According to a 1921 article about the Powers tabulating system;

“The complete installation consists of 3 different machines, all of which are electrically driven. These are known as the Punch, Sorter and Tabulator. The whole of these machines are quite easy to operate, and any unexperienced girl can be taught to use either in an ordinary working day.”

Which companies were involved with and made tabulating machines?

Hollerith started his own business in 1896, founding the Tabulating Machine Company. In 1911, 4 corporations, including Hollerith’s firm merged to form the Computing Tabulating Recording Company (CTR) and in 1924 CTR was renamed International Business Machines (IBM). A Hollerith tabulator illustrated in a 1929 booklet is shown below.



A competitor for the Hollerith Machine was the Powers Tabulating Machine Company which in 1915 established a European operation in the UK through the Accounting and Tabulating Machine Company of Great Britain Limited which in 1929 was renamed Powers-Samas Accounting Machine Limited.

During WWII the company produced large numbers of Typex cipher machines, derived from the German Enigma machine, for use by the British Armed forces and government departments. In 1959 Powers-Samas merged with the competing company the British Tabulating Machine Company to form International Computers and Tabulators which went on to become part of International Computers Limited (ICL). A Powers tabulator illustrated in a 1929 booklet is shown below.



The changing nature of the 20th century office

The typing pools of the 1960s, 1970s and 1980s might seem very old fashioned now, but in the 1930s there were whole departments of large businesses that were dedicated to card punching and tabulating. The images below show the Punching Department and the sorting / tabulating rooms respectively at Cornhill Insurance Company in London in 1938.




The collection of booklets has been catalogued (archive reference NAEST 233) and is available to consult at the IET Archive Centre, Savoy Hill House.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 04 August 2015 02:32 PM     Archives     Comments (0)  

July 16, 2015
Particle Physics and the IET Archives

A group of four letters recently came to light in the IET Archives which were written from the physicist Sir Oliver Lodge to the Professor of Physics Silvanus P Thompson between 1900 and 1906. The two letters from 1906 were particularly interesting because they were discussing J J Thomson and the electron – Thomson was awarded the Nobel Prize in Physics in the same year that the letters were written (1906) for the discovery of the electron and for his work on the conduction of electricity in gases.

It is fascinating to see how two contemporary physicists view and absorb a new discovery/theory concerning particle physics in 1906 and perhaps compare it with how modern particle physicists have reacted to the discoveries/theories resulting from the work at the Large Hadron Collider beneath the Franco-Swiss border.

Extract from Letter of 6 March 1906

“My dear SPT, ashamed of delay, but I am lazy. J. J. T. [J J Thomson] atom is not a hollow shell of pos. [positive] E. [energy] it is a solid uniform mass (or sphere) or jelly of it in the substance of which the electrons are embedded. This is to get at law of direct distance, and therefore, the equal periodicity of orbits independent of varying amplitude, shape etc…… I like it much. Of course the treatment of + E [positive energy] is excessively provisional. That is the real outstanding puzzle, and until + E can be tackled the whole theory is vague.”

Extract from Letter of 17 October 1906

“Dear Silvanus Thompson, I am bringing out a new edition of ‘Modern Views of Electricity’. I don’t want to change it much less to reopen it. I shall not be dealing with the electron business: that occurs in another volume; but the old book is often enquired for, and I think would still be useful to elementary students who should not lose sight of the old facts in attending to electrons and new facts…..”

Who Were These Individuals?

Sir Oliver Lodge, FRS (1851-1940), the writer of the letters, was a British physicist and writer involved in the development of, and holder for key patents for, radio. He identified electromagnetic radiation independent of Hertz’ proof and at his 1894 Royal Institution lectures, Lodge demonstrated an early radio wave detector he named the ‘coherer’. Lodge was Principal of the University of Birmingham from 1900 to 1920 and was awarded the IEE’s Faraday Medal in 1932.



Silvanus Phillips Thompson, FRS (1851-1916), the recipient of the letters, was a professor of physics at the City and Guilds Technical College in Finsbury, and was known for his work as an electrical engineer and as an author. S P Thompson was the President of the IEE in 1899.



Sir Joseph John Thomson, OM, FRS (1856-1940) was an English physicist who was appointed to the Cavendish Professorship of Experimental Physics at the Cambridge University’s Cavendish Laboratory in 1884. In 1897 Thomson showed that cathode rays were composed of previously unknown negatively charged particles, which he calculated must have bodies much smaller than atoms and a very large value for their charge-to-mass ratio. He is therefore credited with the discovery and identification of the electron and with the discovery of the first subatomic particle. Sir J J Thomson was awarded the IEE’s Faraday Medal in 1925.

Where Did the Letters Come From?

S P Thompson’s large scientific library and pamphlet collection came to the IEE in the early 20th century some years after his death. Thompson had a habit of enclosing his correspondence with authors and scientists and engineers amongst those books and pamphlets.

In the case of the books any letters discovered inside were subsequently extracted for their own protection and now form a separate collection within the IET Archives. However not all the letters were found at the outset and further ones have emerged since that time. These four letters between Lodge and Thompson probably come from within the pages of those books and pamphlets and had been put to one side at some point over later decades. The letters have been catalogued as collection SC MSS 265 and can be consulted in the IET Archives.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology

Edited: 24 September 2015 at 04:50 PM by Jonathan Cable


    Posted By: Jonathan Cable @ 16 July 2015 03:47 PM     Archives     Comments (0)  

May 14, 2015
Nuclear Reactor Plates in the IET Archives

Amongst the items held by the IET Archives are two nuclear reactor plates taken from the Merlin nuclear reactor. However, there is no need for the archivists to get out a Geiger counter every time we bring out the plates because they are information plaques attached to the outside of the reactor. The first plaque, shown below is from the opening of the reactor in November 1959.



The Merlin Reactor and Aldermaston

Merlin was a 5 MW research reactor at Aldermaston Court, Aldermaston, Berkshire, England, which operated from 6 November 1959 until 1962 before its license was revoked/surrendered in 1963. It was the first commercial scientific reactor in Britain and was privately owned and operated by Associated Electrical Industries (AEI). A British Pathé recording of the opening of the reactor (without sound) can be found on the British Pathé website here - Merlin Reactor Opening.

Aldermaston Court is a country house and park built in the Victorian era for the British Member of Parliament, Daniel Higford Davall Burr (1811-1885) with elements incorporated from buildings of earlier centuries that had been present on the site. In 1939 AEI bought the house and immediate grounds for £16,000, but despite this purchase, the government soon earmarked the location for an airfield, RAF Aldermaston. During WWII the land and house were requisitioned by the government as a barracks for the Women’s Land Army.

After the war, the airfield remained in use but after the airfield’s closure in 1950, the park was returned to AEI, which used it as a plasma research laboratory. AEI built the now demolished reactor between the house and its lake. This facility became the UK’s Atomic Weapons Research Establishment later the Atomic Weapons Establishment (AWE) for research, commissioning, and de-commissioning of most such weapons.

How did the plaques come under the care of the IET Archives?

A little of the provenance of these items is unclear but they most likely came into the archives with the donation of the papers of Douglas Richard Chick, FIEE.

In 1946 Chick joined the Research Laboratory of AEI at Aldermaston, where he was appointed Section Leader of the Nuclear Physics Section. He later became Group Leader of the newly-formed Nuclear Sciences Group. In 1963, after the closure of the Merlin reactor, Chick moved to become Research Manager of the Vickers Company Research Laboratory, Ascot, where he remained until 1966, when he was appointed Professor and Head of the Department of Electronic and Electrical Engineering at the new University of Surrey. The Chick papers include many of AEI’s research papers including reports about the Merlin reactor.

The second plaque, which is shown below, perhaps hints at the frustration of the engineers, technicians and scientists at Aldermaston when the Merlin reactor was shut down in 1962.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 14 May 2015 09:01 AM     Archives     Comments (0)  

May 1, 2015
Can You Really Trust a Label?

On occasion objects come into the archive collections which are labelled and usually these labels are taken at face value unless there is good reason to believe otherwise. However, we recently examined an object label which caused us to question the accuracy of the information on the label.

Through a chance set of circumstances two particular boxes of objects were brought back to the IET Archive Centre from storage at the same time. Once those boxes had arrived it was noticed that the online catalogue showed two items with a different reference number, supposedly one in each box, and each with an identical description.

The description for both items was ‘gavel set presented to the IEE by the Institution of Electrical and Electronics Technician Engineers upon the centenary of the IEE in 1971’.

The first thought was that there must be some duplication in the catalogue and there was an expectation that upon examining the contents of the boxes we would find that only one gavel existed. However, when we opened the boxes we did find a gavel set in each box.

The first gavel (new reference OPC/1/161/7) is shown below:

The wood for the gavel and stand match (wood colour and grain) and there is a metal engraved plate which says ‘THE INSTITUTION OF ELECTRICAL ENGINEERS - CENTENARY YEAR. Presented by the Institution of Electrical and Electronics Technician Engineers, 17 May 1971'

The second gavel (new reference OPC/1/161/9) is shown below:



The mount (in 2 sections), with typed label glued to the base, and its associated gavel appear to be a second gavel gift set (the set is the same colour and wood grain - though these are different from the first gavel set) presented by the Institution of Electrical and Electronics Technician Engineers to the IEE upon its centenary in 1971.

Which is the real gavel presented by the IEETE to the IEE in 1971?

Whilst it is possible that the IEETE gavel the IEE two sets of gavels and stands this would be highly unusual. If the IEETE only presented one gavel set then the question becomes which set is likely to be the genuine set? Our belief is that the top gavel set is the original as someone has gone to the effort of having a metal plate engraved and this would be an appropriate treatment for a centenary presentation gift from one professional body to another. It is also unlikely that an organisation would stick a typed label to such a high profile gift.

Our guess, and it is no better than a guess, is that the second gavel set was discovered without a label at some point after 1971 and that it was assumed to be the IEETE’s gavel gift. The 1970s was a period well before the advent of archive cataloguing software and tracking tools such as barcodes and even the IEE’s Archives only came into existence after 1970.

The catalogue entries for these two gavel sets have now been amended to refer to each other and to mention the uncertainty about the provenance of the second gavel set.

Note: The IEETE and the IEE are both predecessor organisations of the IET. The IEETE, after a number of mergers and name changes, was one of the organisations that merged to form the IIE in 1998, which itself merged with the IEE in 2006 to form the IET.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 01 May 2015 04:54 PM     Archives     Comments (0)  

April 10, 2015
Early History of the IEE in the North-East and a Recent Discovery

The first local centre of the Institution of Electrical Engineers in the North-East was the Newcastle Local Section which was formed in 1899. The Teesside Branch was spun out of this Section in 1912 and became the Teesside Sub-Centre in 1919 whilst the Newcastle Local Section itself changed its name to the North-Eastern Centre in 1919.

A Recent Discovery of Early Minutes Belonging to the Newcastle Local Section

In 2014, a donation was made to the IET Archives of the minute book of the Newcastle Section (archive reference IET/CEN/15/1/94). The donor had no idea how the minute book came to be in his attic but we were nevertheless very grateful to receive this wonderful volume. The minute book covers the period 1913 to 1921 and includes not only the minutes of the Newcastle Local Section Committee and its successor the North-Eastern Centre Committee but also includes minutes of the Teesside Branch Committee.

Other than a list of the members of the 1913-1914 Dinner Committee pasted to the inside cover, the first entries are for the Annual General Meeting of the Section held in Armstrong College on Monday 26 May 1913 and the 12th Committee Meeting of the Section for the 1912-13 session held again at Armstrong College, Monday 22 September 1913. These first entries are shown below.



The minute book gives a particularly valuable insight into the regional activities of the IEE. Until the discovery of this volume the IET Archives only held the minutes of the North-Eastern Centre dating from after 1920.

Formal regional groupings of IEE members around the UK were called Centres for most of the 20th century. Centres organised most of their own affairs, and whilst they would usually send copies of their minutes to the IEE at Savoy Place in London they were under no obligation to send their original records to the IEE’s archives. The original IEE Centre minutes that exist today in the IET Archives are those that particular centres chose of their own volition to send to London and several gaps remain in the series of Centre minutes.

Are minutes really that interesting?

The IEE Centre minute books from the early 20th century are quite unlike a modern set of minutes where there is typically only a brief record of a meeting and where much of the detail is in the supporting reports. The early minute books were written in great detail, were very wide ranging and contain much social history as well as personal opinions.

As might be expected the Newcastle Local Section minute book contains details of lectures, visits, and dinners that formed key elements of the Section programme. For example the first lecture mentioned, which was given at the 1913 AGM, was on the subject of ‘notes on gas engines’ given by Albert P Pyne (many years later Albert became the Chairman of the Section). The September 1913 Committee minutes noted a recent visit to see the SS Tynemouth at the Walker Shipyard belonging to the famous shipbuilders Messrs Swan, Hunter & Wigham Richardson. Swan Hunter was well-known in the early 20th century for its building of RMS Carpathia in 1903 and RMS Mauretania in 1913. The SS Tynemouth of Newcastle was stranded off the coast of Northumberland in May 1913 and was probably in the Swan Hunter shipyard for repairs. The 1913 Board of Trade wreck report on the Tynemouth can be found here - SS Tynemouth wreck report. 

The minutes also discuss cooperation with the IEE in London and subjects of particular interest to the Section/Centre. There is also an example of the Centre adopting a different attitude to the IEE Council. In March 1919 the Centre Committee wrote to other Centres about an IEE Council decision to support a Board of Trade report on electric power supply with which the North-Eastern Centre ‘regretfully’ could not concur.

There is a significant amount of coverage in the minutes of the relationship of the Section/Centre with other technical and engineering organisations in the region such as the Junior Institution of Engineers and given the period covered there is a large amount of material relating to WWI.

The extract from the minutes shown below comes from a meeting held Monday 30 July 1917 in the boardroom of another famous North-Eastern engineering company, Merz & McLellan. The minutes shown discuss the proposed formation of an Electric Light & Signal Company and the committee proposed seeking the immediate cooperation of the Chamber of Commerce Electrical Section to organise a mass meeting of the electrical industry to bring this about.



Prominent and Noted Engineers Involved with the North-Eastern Centre

Many well-known engineers were Committee members and they have signed the pages of the minutes or have added entries by hand. These individuals include;

C Vernier (Section Chairman 1913).

Philip Vassar Hunter (Section Chairman 1914-1916 and President of the IEE 1933).

Henry William Clothier (Section Chairman 1916-1917).

Albert Henry Weaver Marshall (Section Chairman 1917-1918).

Albert P Pyne (Centre Chairman 1918-1919).

William Cross (Centre Chairman 1919-1920).

James Robert Beard (Centre Chairman 1920-1921 and President of the IEE 1940).

The eminence of the individuals can be illustrated by Philip Vassar Hunter (photograph below).



Philip Vassar Hunter was made the Head of the Electrical Department of Merz & McLellan in 1909, was loaned to the Naval Staff as Chief Engineer of the Experiments and Research Section of the Anti-Submarine Division for WWI, and after the war became Joint Manager and Chief Engineer of Callender’s Cable and Construction Company. When British Insulated Callender’s Cable Co (BICC) was formed in 1945 he became a Director and Engineer-in-Chief and later he became Deputy Chairman of the company.

P V Hunter as well as being the IEE’s President in 1933 was also made an Honorary Fellow of the IEE in 1951 and the IEE recorded a film of him in 1951 as it did of many other Honorary Fellows and Faraday medallists. The IET Archives holds film files including the scripts for many of these films including that of P V Hunter in which he talks about his experiences and work in WWI and WWII and the power distribution work carried out by Merz in the early 20th century.

History of Technology TPN Event in Newcastle – June 2015

There has always been a strong relationship between engineering and the North East of England and on the weekend of 6-7 June 2015 at the Newcastle Discovery Museum there will be a conference on the history of power generation, distribution, utilisation and other engineering specialisms. This conference is being organised by the History of Technology TPN and there will be an opportunity to visit the Discovery Museum’s ‘Arcs and Sparks’ collection. There will also be an optional visit on Sunday 7th June to Cragside House, a National Trust property which was the first private residence to employ hydroelectric power.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 10 April 2015 03:09 PM     Archives     Comments (0)  

March 16, 2015
Transatlantic Cables, Mermaids and Messages in Bottles

The IET Archives has several important collections of papers, photographs and other material related to transatlantic telegraph cables. In particular collections related to the 1st and 2nd transatlantic cable expeditions of 1858 and 1865/66 respectively are frequently consulted by researchers. 

More information about these expeditions, including images, can be found on the IET Archives web pages here The First Transatlantic Telegraph 1858 and also here The Transatlantic Telegraph Cables 1865-1866. The IET Archives also holds segments of various transatlantic cables. The image below shows a section of what was to become the 2nd transatlantic cable.



The cable has been set in a brass ring and mounted on a wooden block probably intended as a presentation gift. The words inscribed on the brass ring are ‘ATLANTIC TELEGRAPH CABLE 1864’. The date might be a little perplexing as the 2nd transatlantic telegraph cable expedition didn’t commence until 1865. However, the cable for this 2nd expedition was already being manufactured by the Telegraph Construction & Maintenance Co. Ltd (Telcon) in 1864 and the cable was being stowed, and continually tested, on board the ship Great Eastern where the water tanks protected and preserved the gutta percha insulation (see ‘The Cable: The Wire That Changed the World’, by Gillian Cookson, 2003, p.140).

The manufacture of the cable was eventually completed in May 1865 and an invitation was sent out by Telcon to witness the completion of the cable’s manufacture on 29 May 1865 (invitation shown below in included in the ‘1865 Telegraph Album’, reference SC MSS 254).



Mermaids and the Early Transatlantic Cables

The state of progress with the transatlantic telegraph cable project featured regularly in the pages of the press of the day, and cartoonists often took the opportunity to poke fun often employing images of Neptune and mermaids. The illustration below is one such cartoon, published in Punch, 5 August 1865, and it accompanied a 5 verse poem titled, ‘Neptune to the Mermaids’ which celebrated the cable but implored the mermaids to leave it alone!



The caption for the cartoon titled, ‘a word to the mermaids’, has Neptune saying, “Ahoy there! Get off of that ‘ere cable can’t yer – that’s the way t’other one was wrecked!!!”

Later Transatlantic Cables

Another transatlantic cable collection in the IET Archives is that of Cecil Herbert Finnis (1885-1951), an electrical and mechanical engineer involved with Siemens Brothers’ cable laying vessel the CSS Faraday. (collection SC MSS 77). This includes Cecil’s handwritten diary from a cable repairing expedition carried out by the CSS Faraday in 1903. The cable to be repaired was that belonging to the Direct United States Cable Company (DUSCC) which had been laid in 1875.

The extensive diary entries include depth soundings and weather conditions from every one of the 73 days spent at sea beginning May 19th 1903. The diary begins, “started from Charlton [on the Thames river], opposite the works at about 6 pm. Father and some of the gents accompanies us to Gravesend & left at 8pm with the cry, ‘Simla’ after a lunch at 7 pm.”

The CSS Faraday was built in 1874 at Newcastle upon Tyne and was purpose-built for Siemens Brothers as William Siemens had found chartering vessels for cable-laying totally unsuitable. Over 50 years SS Faraday laid over 50,000 metres of cable before being sold for scrap in 1924. More information about the CSS Faraday can be found on the website titled History of the Atlantic Cable. Siemens’ own website also has a history of Siemens involvement with the transatlantic cable the DUSC and the CSS Faraday and can be found here Siemens and the CSS Faraday.

The image below is one of several photographs taken by Finnis on that expedition using a Kodak box camera and shows individuals on the deck of the CSS Faraday.



Message in a bottle

One of the more unusual items in the Finnis collection is a handwritten note that Finnis originally put into a bottle and dropped into the sea on Thursday 23 July 1903, the day on which the final splice of the DUSC took place. In that letter shown below, Finnis offered to pay a reward and expenses to any finder of the message in a bottle who returned it to Finnis at his home in Chiswick.



The letter was found over 5 months later by Joseph Andrew on Praa Sands beach near Marazion in Cornwall, UK on 12th January 1904 and it was returned by Mr Andrew to Cecil Finnis in order to obtain the reward (letter shown below).



To view and consult any of the items mentioned above please contact the IET Archive Centre.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 16 March 2015 03:48 PM     Archives     Comments (0)  

February 19, 2015
28 February 2015 - 80th Anniversary of the Birth of British Radar

On the 26th February 1935 a test took place known as ‘The Daventry Experiment’ which is considered to be the precursor of radar in Britain. The test involved the Daventry transmitter of the BBC’s Empire Service and an RAF Heyford bomber which had been assigned to this test by the Royal Aircraft Establishment at Farnborough.

The full story of The Daventry Experiment, written by Brian Austin appears in the February/March 2015 issue (issue no. 153) of the vintage radio enthusiast magazine ‘Radio Bygones’. I am grateful to Brian for allowing me to extract elements from his story.

The plan was for the bomber pilot, Flight Lieutenant R S Blucke to fly to Daventry where, on arrival, Blucke would fire a Verey light to indicate his presence. He would then follow a particular course that would take him along the transmitted beam from the BBC transmitter at an altitude of 6,000 feet. After executing an about turn over some designated marker he would fly back to Daventry while losing altitude to around 1,000 feet. After firing another Verey light he would then return home.

On the ground, near to the village of Weedon, Sir Robert Watson-Watt and A P Rowe from the Air Ministry had joined Arnold Wilkins, a Scientific Officer at the Radio Research Station (RRS) a vastly experienced radio engineer, together with the driver of a converted Morris ex-ambulance that was used as the RRS’s ‘travelling laboratory’. The previous night in preparation for the test, Wilkins and the driver had erected two parallel antennas in a co-operative farmer’s field.

When Blucke’s aircraft appeared on the morning of the 26th February it was initially well to the east of the agreed flight path and no indication of its presence appeared on the cathode ray tube (CRT) screen. However, on its next pass, now closer to the observers, there were definite variations on the CRT screen – described by Wilkins as a ‘rhythmic beating’. This happened again on the following run and Wilkins and Watson-Watt estimated that they were able to observe the Heyford over a distance of about 8 miles.

There was much more to be done before Watson-Watt’s eventual radar system, came into existence but it all began with this Daventry experiment.

Sir Robert Watson-Watt and Radar

Sir Robert Watson-Watt (1892 – 1973), known as the father of British radar, was celebrated in an IEE History of Technology lecture in February 1993 to mark the centenary of Watson-Watt’s birth. Sir Robert, who had been a member of the IEE, had also been at one time the Chairman of the IEE’s Radio Section. An abstract from that lecture, written by the lecturer, Professor R Hanbury Brown, is set out below;

“Radar was ‘invented’ by Watson-Watt in response to an enquiry about a death-ray. His great achievement was not simply to invent a new gadget; it was to apply this invention to an urgent and historically important problem, the air defence of Great Britain. The original work on RDF, as radar was called, started secretly in 1935 at Orfordness. In 1936 it was moved to a nearby mansion, Bawdsey Manor, where for three years Watson-Watt was the Superintendent and the lecturer was a junior member of the staff. The principal objective to this early work was to develop a chain of radar stations to detect and locate enemy aircraft so that Fighter Command could intercept them. The first, almost disastrous, attempt to demonstrate this use of radar in 1936 is described. In due course a chain of radar stations (CH) was built all-round the coast and proved to be a vital factor in the defence against daytime raids of the Battle of Britain. For defence at night Watson-Watt, perhaps prompted by Sir Henry Tizard, foresaw the need for a radar to be carried in the fighter and in 1936 he started the first and only team in the world working on airborne radar. Radar-equipped night-fighters (AI), guided by ground control radars (GCI), were used effectively against the heavy night raids in 1941. In 1938 Watson-Watt left Bawdsey for the corridors of power in Whitehall. After the war he formed a small firm of scientific consultants and eventually moved to Canada.”

A video version of the lecture was made featuring Professor Brown presenting his lecture material, interspersed with many images and film clips (archive reference IET/SPE/3/2/7/1). It covered Watson-Watts' history and his involvement with the early days of radar. The video has been digitised and is available to watch via the IET Archives Centre.

Professor Brown worked with Watson-Watt at Bawdsey Manor as a junior member of the team and tells many fond stories about Watson-Watt including his humorous use of unintelligible phrases which Brown used to ‘collect’. The image from the video below shows the Professor mentioning one such phrase which is captioned. Watson-Watt used this phrase when describing his position in the UK to Chiefs-of-Staff in Washington.



IET Archive letter from Sir Robert

Whilst the IET Archives does not hold a great deal of Watson’s-Watt’s own material there is a curious letter in the IET Archives in the Owen S Puckle collection (NAEST 101) written by Watson-Watt in New York to Puckle – see image below.



In the letter Sir Robert thanks Puckle for an earlier letter of congratulation (Puckle assisted in the development of the ‘Radio Location’ device). Whilst Sir Robert received many accolades during his lifetime and held many official positions with various institutions it is not clear to what the earlier congratulatory letter refers as most of Sir Robert’s awards came earlier in his life than 1952. Watson Watt did re-marry for the second time in 1952. He married Jean Wilkinson, a Canadian, the widow of historian Professor George M Smith, so perhaps Puckle was referring to Sir Robert’s forthcoming marriage?

For those interested in the history of radar the IET Archives also holds many relevant collections including Sean Swords’ collection of papers on radar (NAEST 144). Sean Swords wrote the ‘Technical History of the Beginnings of RADAR’ in 1986 and this collection comprises correspondence and material used in the production of that book. For example there is a copy of the 1935 letter to H T Tizard from A P Rowe regarding the secret memorandum prepared by Watson-Watt on the possible use of electromagnetic radiation for air defence.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 19 February 2015 05:17 PM     Archives     Comments (0)  

February 11, 2015
Artistic and Literary Connections in the IET Archives - Diana Lodge

Within a recent donation to the IET Archives covering several different collections, there was a single audio cassette tape, unrelated to the other items and annotated ‘Diana, Colin and Tom Lodge 1995’. The tape recording was donated by the researcher who in 1995 interviewed Diana, Colin and Tom Lodge at Diana’s home of ‘Trillgate’ in Slad, Gloucestershire and this was a tape of that interview. A copy of a painting of ‘Trillgate’, painted by Diana and used as a card illustration, is shown below.



The reason for conducting the interview was that the researcher was interested in the eminent British physicist and writer Sir Oliver Lodge FRS (1851-1940) who was involved, amongst other things, with important developments in wireless telegraphy. Diana Lodge, the interviewee, was the 2nd wife of Sir Oliver’s eldest son also called Oliver Lodge. Diana had many memories of Sir Oliver Lodge from her earlier life and it is some of these memories that are recorded on the cassette tape.

In addition to his important scientific contributions Sir Oliver Lodge is also known for his studies in psychical research and spiritualism and he wrote many books on the subject. For those interested in finding out more about Sir Oliver, the 1974 biography called, ‘Sir Oliver Lodge’, by W P Jolly, can be found in the IET Library. The IET Archives also has a number of letters written by Sir Oliver Lodge to W H Preece (see collection NAEST 21). For example in the letter below dated 4 March 1898 Sir Oliver writes to Preece about his magnetic telegraphy scheme about which he says, ‘naturally I should like the Government to take it up, as I believe that it is the most powerful and by far the simplest plan possible’. This letter is shown below.



Given the importance of Sir Oliver Lodge it would be easy to overlook the interviewee, Diana Lodge, but Diana also had a fascinating, but very different life.

Diana Lodge

Diana Lodge (1906-1998), the Welsh painter, was born Diana Violet Irene Mabel Uppington, and became the second wife of Oliver W F Lodge in 1932. Oliver William Foster Lodge was a poet, author and painter unlike his 5 brothers who all qualified as engineers. He was a member of the Bloomsbury Group and associated with artists such as Eric Gill and David Jones.

Oliver W F Lodge met Diana Uppington, 10 years after the death of his first wife in childbirth, when she answered his advertisement for a model. Diana had previously modelled for other artists and had appeared on stage as a Tiller Girl. Following Oliver’s death in 1955, Diana changed her name by deed poll to Diana Kohr following her involvement with the Austrian economist Leopold Kohr, who had met Oliver and Diana in the USA during WWII. She changed her surname back to Lodge in 1966 following her separation from Kohr. Continuing the literary connections Diana was also a neighbour and friend of the writer Laurie Lee. A television documentary for HTV called ‘Inner Journeys’ by Jonathan Stedall was aired in 1993 and covered personal stories of ten individuals including Diana.

Given Diana’s background it is perhaps fitting that the first story she tells during her interview is about visiting her father-in-law in the period before WWII (after Sir Oliver’s wife Mary had passed away). At that time Diana recalled that two of Sir Oliver’s daughters, Lorna (1892-1987) and Norah (1894-1990) took it in turns to stay with Sir Oliver and look after him. Diana stayed with Lorna and they, together with another daughter Violet, visited Sir Oliver at his home, Normanton House, and pretended to be a Russian dancing troupe. Diana remembered Sir Oliver putting an arm around her shoulders and saying, ‘this one can dance’! Diana also recalled that every night before bed at Normanton House they would dance, typically a waltz.

The interview, around 55 minutes long, only contains a limited number of stories and comments about Sir Oliver, typically tributes about his character. The interview, which was also conducted with Diana’s sons Colin (1944-2006) and Tom (1936-2012), contains many more reminiscences about Sir Oliver’s other children including Brodie (1880-1967) and Alec (1881-1938) who set up the Lodge Plug Company and also Raymond who died in WWI at Ypres. It was a poignant moment during the interview when Diana read out 2 poems written by her late husband Oliver W F Lodge, one in memory of Oliver’s brother Raymond, and one in memory of his father Sir Oliver.

Tom Lodge, another interviewee was no less interesting. He moved to Calgary, Canada, when he was 18 and became a cowboy, a used-car salesman, a fisherman and a gold-miner before becoming an announcer for the Canadian Broadcasting Company. On his return to the UK he was involved with the launch of Radio Caroline and became one of its presenters (Tom’s obituary can be found in The Independent, 2 April 2012).

The audio cassette has been digitised and catalogued (reference SC MSS 236) and it can be consulted in the IET Archive Centre.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 11 February 2015 05:22 PM     Archives     Comments (0)  

January 27, 2015
The Schrödinger's Cat Conundrum - What Really is in the Box?

Stretching the Schrödinger’s cat thought experiment analogy – the IET Archives recently received a small box that supposedly contained a ‘permanent detector’ a component that was used in connection with crystal radio sets of the 1920s. A permanent detector made by the company Radio Instruments (RI), made by the company between 1922 and 1930, was what was advertised on the box – but was that really the item that could be found in the box?

Well there was something in the box and it looked a little like the illustration on the outside of the box, but it was definitely a different object. Upon very careful examination, in a certain light, at a certain angle, the faint lettering ‘Brownie Permatector’ could be found.

This item was nothing to do with the eponymous dessert square, developed in the US at the end of the 19th century, but instead a permanent detector made by a rival firm to RI called the J W B Wireless Company (Brownie was a brand name). Both companies manufactured permanent detectors for crystal radio sets in the 1920s. The Brownie permanent detector found in the box, which the company introduced in 1926, is shown below.



The crystal radio receiver, or crystal set, contained a .cat’s-whisker detector, an electronic component consisting of a thin wire that gently touches a crystal of semiconducting mineral. The Brownie permanent crystal detector shown above comprises a nickel-plated housing with a crystal and whisker inside the housing. The whisker could be fixed permanently at a sensitive point on the crystal hence the term ‘permanent detector’.

Given the above, we now have evidence of one reality in answer to the Schrödinger cat conundrum. What is inside the box – it is a cat’s whisker!

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 27 January 2015 04:56 PM     Archives     Comments (0)  

January 22, 2015
Electrical Technical Papers of the 1950s and Radio Objects from the 1920s/1930s

The IET Archives recently received a donation of electrical technical papers, dating primarily from the period 1949 to 1955. These papers were amassed by Edward J Back when he was working as a Technical Assistant in the 1950s for the Consulting Engineering Department of the Company Johnson & Phillips. Edward Back was a Graduate member of the IEE before becoming an Associate Member in 1953. This collection has been catalogued with the reference SC MSS 262.

Whilst many of the papers and articles were from journals that can be found in the IET Library such as ‘Distribution of Electricity’, ‘Electrical Times’, ‘The Electrical Journal’ and ‘Electrical Review’, these readily available articles were interspersed with letters and memoranda typically written by S Austen Stigant the Technical Adviser at Johnson & Phillips. The papers are organised by subjects including cables, electro-technology, rotating machinery, transients, and transmission.

The subject matter is understandable given that Johnson & Phillips was a cable making and wire rope machinery company founded in 1875 which by the 1950s had become a specialist in the area of transmission transformation and control of electricity. It manufactured electric cable, cable accessories, switch gear, transformers, capacitors and overhead line materials. It was acquired by the Delta Metal Company in 1964.

The collection is a useful addition to the IET Archives technical collections, particularly because the collection includes brochures and publications of other companies involved in the manufacturing of electrical equipment such as the English Electric Company, British Insulated Callender’s Cables (BICC), and Ferguson Pailin. The illustrations below are from a BICC publication from the early 1950s for its power capacitors which show a layered section diagram of its automatic power factor correction equipment for capacitors.

All layers of diagram showing;



Overlay 1 removed;



Radio Objects from the 1920s/1930s

As is quite often the case with collections of papers formed by individuals, some small objects, related to the individual are donated along with the papers. In this case Edward Back was likely to have been a radio enthusiast because the collection included a radio microphone dating from the period 1935-1940, inductors used in radios (coils of wire wrapped on a Bakelite core), and a permanent detector used in crystal radio sets from the 1920s.

The Telsen Electric Co (1935) Ltd ‘Ace’ spring-suspended microphone (type 68) is shown below;




Telson Electric Limited was a British firm that made a spring-suspended microphone (Ace brand) from 1930 to 1939. The company, founded by A Macnamara, based in Birmingham was active from 1924 to the 1940s, and manufactured wireless broadcast receivers, components, microphones and construction kits. It was founded by A Macnamara and had a cabinet making department which made the furniture into which the wireless receivers were built. It purchased Bakelite cases from Edwin Elliot of Birmingham; produced components for the building of a home wireless receiver, and produced blueprint layouts for home construction. The company went into receivership in 1935 but was then bought out of receivership. After this the company traded as The Telsen Electric Company (1935) Limited.

Telsen microphones were used for both home recording and public address. The Science Museum has a Telson microphone in its collection but that is a different model, likely to be a model 58, rather than the microphone above which is a model 68. Here is a link to the model in the Science Museum collection. Telsen Ace microphone at Science Museum.


SC MSS 262 can be consulted in the IET Archive Centre. Details for visiting the Archive Centre can be found on the archive web pages here - Archive Centre details.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 22 January 2015 03:11 PM     Archives     Comments (0)  

January 16, 2015
The Education and Training of Engineers Born Between 1915 and 1925

The subject of the training and education of engineers has been a topic very dear to the hearts of the members of the IET and its predecessor organisations for decades going back to the 19th century. These subjects appear time and again in the minutes of these organisations such as within the IEE’s Council minutes. Material on education and training can also be found extensively throughout the other, non-organisational collections, found within the IET Archives such as the papers of Sir Arthur Fleming (NAEST 70) who established a trade apprentice school at what became Metropolitan-Vickers.

Training and availability of engineers has been an issue that many governments have sought to address and concerns have resulted in many significant reports such as ‘Engineering Our Future’, known alternatively as the Finniston report, published in 1980, and shown below.



The subject remains very topical and when EngineeringUK’s report, ‘Engineering UK 2015: the state of engineering’, was published earlier this week, it received widespread media attention

Given this background the IET Archives has been fortunate to receive a recent donation of questionnaires and related correspondence which was the output of a project undertaken in 1994 and 1995 to look at the education and training of engineers born between 1915 and 1925.

The 1994/1995 Survey of Engineers

Dr Colin Hempstead, an academic at the University of Teesside, carried out a survey in 1994, targeting engineers who had been born between 1915 and 1925. Dr Hempstead sought participants via 'IEE News' in 1994 and via other channels such as the 'Newcomen Bulletin'. He asked engineers born between 1915 and 1925 to complete a survey questionnaire about their education and training. The questionnaire was very detailed and asked questions under the categories of; personal details; education; qualifications; training, funding of education and sociological information such as mother’s and father’s occupation, reasons for leaving school and reason for becoming interested in engineering.

Many of the respondents provided additional personal histories and biographical information to supplement the completed questionnaires. Whilst the survey was not exclusively aimed at the Institution of Electrical Engineers and its members, the majority of completed questionnaires came from IEE members from who circa 150 replies were received.

This detailed information on the educational and training background of engineers in the first half of the 20th Century is likely to be a very useful and valuable resource for researchers in the future but they will have to wait for several more decades before these records are made available for open consultation.

As this collection contains detailed personal information on individuals who provided this information relatively recently in 1994/1995 the files will remain closed to researchers in the short to medium term in line with the IET Archives’ closure policy in respect of collections containing personal or sensitive information. Using extracts of information from the collection, where individuals cannot be identified from the information provided, would be possible in the intervening period.

This new deposit has been catalogued as SC MSS 261, although the catalogue entries do not mention the name of individual respondents to preserve anonymity until the closure period has expired.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 16 January 2015 02:46 PM     Archives     Comments (0)  

January 6, 2015
Oral History and Papers Related to the H W Sullivan Instrument Company

The IET Archives recently received a donation of cassette tapes and notes relating to an oral history project carried out in the late 1990s. These items have now been catalogued as NAEST 221 and the audio cassette tracks have been digitised.

The oral history project recorded interviews with several people who were intimately involved with H W Sullivan, the noted British instrumentation company, which began life in 1897 and was taken over by Cambridge Instruments in 1967. Cambridge Instruments was itself taken over by George Kent and then Thorn. In 1972 Thorn, which ultimately became Thorn EMI, moved the manufacturing of Sullivan products from Orpington, Kent, to its Dover, Kent, site where Thorn was already manufacturing instrumentation under the AVO brand. The Sullivan brand was maintained for a period and was still being used in the early 1980s. H W Sullivan was known for its precision test equipment and measuring instruments such as Wheatstone bridges and galvanometers. An H W Sullivan product is illustrated below, taken from a telephone cable testing equipment catalogue circa 1955.



The product below is one of the last products with the Sullivan brand name and comes from the late 1970s.



The donation was particularly welcome because the IET Archives already has an extensive collection of instrumentation material. Collection NAEST 145 comprises the trade literature and technical manuals of AVO International Ltd including its predecessor companies such as, Thorn EMI Instruments Ltd (renamed Megger Instruments Ltd in 1987), Evershed and Vignoles, and of course H W Sullivan. The HW Sullivan element alone of NAEST 145, mainly technical literature and manuals of the 2nd half of the 20th century, fills 9 archive boxes. 

Brief Chronology for H W Sullivan

1856 Herbert Watson Sullivan born in Malta.

1870 H W Sullivan apprenticeship with Telegraph Construction & Maintenance Co Ltd.

1873 H W Sullivan joined Eastern Telegraph Co, Gibraltar.

1878 H W Sullivan became an Associate Member of Society of Telegraph Engineers (STE).

1879 H W Sullivan joined Telegraph Construction and Maintenance Co Ltd.

1892 H W Sullivan became a Member of the IEE (formerly STE).

1893 H W Sullivan granted galvanometer patent.

1895 Donald Arthur Stevens born.

1897 Company H W Sullivan formed; offices at 19 Gt Winchester St; works at Old Broad St.

1914 Works address changes to 104-6 Middlesex St.

1921 Donald Stevens BSc (Civ. Eng.) at KCL, goes to Africa.

1922 The company HW Sullivan Ltd formed with DA Stevens, Lt Commander Walter George Bishop & James Hayne Stevens.

1925 Herbert Sullivan dies and Donald Stevens takes charge.

1927 Company factory moves from Middlesex St (Petticoat Lane) to Leo St, Peckham.

1963 Company factory moves to Murray Road, Orpington.

1964 Donald Stevens retires, with his sons Brian and David Stevens taking over.

1966 Donald Stevens dies.

1967 Company taken over by Cambridge Instruments.

1968 Company taken over by George Kent, with Bill Goldfinch as General Manager.



1970 Company taken over by Thorn.

1972 Thorn moves manufacturing of Sullivan products to Archcliffe Road, Dover site with AVO.



1980s Possibly the last use of the Sullivan name in advertising.

The H W Sullivan Interviews

The interviews were typically around 90 minutes long and took place with the following five individuals (summary transcripts of the interviews were made at the time of the recordings);

1. Mrs Mabel Stevens, widow of Donald Stevens. Donald Stevens ran the company from 1925 until 1964, taking over the running from Herbert Watson Sullivan.

2. Mr David Stevens, son of Donald Stevens, who jointly with his brother, Brian, took over the running of H W Sullivan from his father in 1964. Donald focuses particularly on the subject of sales.

3. Mr John Lewis who covers the topic of the H W Sullivan office and personnel and who ultimately became Personnel Director for the whole of Thorn-EMI Electronics.

4. Mr Chris Jones who covers the subject of resistance testing and gives a colourful shopfloor viewpoint.

5. Mr Bill Goldfinch who deals with the subject of the Cambridge Instruments takeover in 1967. Cambridge Instruments was taken over by the George Kent Group in 1968 to form the largest independent British manufacturer of industrial instruments. The George Kent Group was itself taken over by Thorn in 1970. Bill Goldfinch was the General Manager of George Kent Group.

In addition to providing very detailed accounts of the operations of the company, its staff, the competitive environment, and the company’s financial performance, the interviews give some fascinating insights into British industrial and social history.

Mr Jones talks of joining H W Sullivan in August 1941 at the age of 13. At that time the company was “in the hands of the bank who put in Mr Burrows as Manager”. When he was being interviewed in July 1941, he was told he could start on August 4th and when he protested that he would not be 14, the minimum age for work at that time, he was told, “if you want the [expletive] job you start on Tuesday”.

Mr Lewis tells a different story from the war period, “we weren’t used to people walking around without their coats on, they didn’t do it. Mr Stevens always came in a black coat, waistcoat, and black striped trousers. I remember during the war my mother bought me a pink shirt with a Trubenised [brand name] collar at the market, and at five past nine I was on my bike back home to change into a white shirt with stiff collar having been asked didn’t I realise you only wore coloured shirts on Saturday.”

The digitised audio files for NAEST 221 can be consulted in the IET Archive Centre. Details for visiting the Archive Centre can be found on the archive web pages here .

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology

Edited: 10 February 2015 at 03:54 PM by Jonathan Cable


    Posted By: Jonathan Cable @ 06 January 2015 08:55 AM     Archives     Comments (0)  

December 23, 2014
IET Archives 16mm Film Digitization Project

The IET Archives has just completed a project involving the digitisation of some of its 16mm film collection, a project which has been running throughout 2014. 34 films, none of which had previously been converted to other formats, and had therefore been unavailable to view within the IET for several decades, have now been digitised. Browse versions of these films are now available in either .mov or .mp4 formats for viewing on computers and other devices or alternatively they can be copied to a DVD format if required by enquirers. The IET Archives also holds these films in an uncompressed file format for long-term preservation purposes.

The majority of the films digitized, date from the 1930s to the 1950s, and are short 7-10 minute films of individuals who had been awarded the IEE’s Faraday Medal or who had been made IEE Honorary Members. Most of these films were made specifically for the IEE, following a particular award. The still below comes from a film made in 1934 of Sir John Ambrose Fleming, 7th recipient of the Faraday Medal, when it was awarded by the IEE in 1928. Fleming, who invented the thermionic value in 1904, was aged 85 when he took part in this film.

The film was a British Thomson-Houston (BTH) Electrical Recording. BTH was founded as a subsidiary of the General Electric Company of the US but came into British ownership when it was amalgamated with Metropolitan-Vickers in 1928 to from Associated Electrical Industries (separate BTH brand identity remained until 1960).



The image below is from another of the digitised films but is a little different in that is a General Electric Company film, made in the US in 1932. The film is of Professor Elihu Thomson who was the 6th recipient of the Faraday Medal when it was awarded by the IEE in 1927. In the film Thomson, the person shown on the left below, talks about the merger of the Thomson-Houston and Edison companies to form GE, his life, and also his inventions (Thomson took out 700-800 patents).



Elihu Thomson (1853 to 1937) although born in Manchester in 1853, moved with his family to Philadelphia in 1858. Together with Edwin J Houston he founded the Thomson-Houston Electric Company in the US in 1883 which was one of the precursors of the General Electric Company of the US which was formed in 1892. The GE film above was an RCA Photophone recording and the interview was carried out by Thomson’s friend, Edwin W Rice Jr, Honorary Chairman of GE at that time, on the lawn of Mr Rice’s home in Schenectady, NY.

The frame above shows a steam train passing by in the background, the sound of which can clearly be heard on the film. This is quite appropriate given that Thomson talks on the film about the development of the railways amongst other things.

Film from the 1920s – BTH’s Work on Sound on Film

The 16mm digitisation project also included two early 20th century films that were donated to the IET in 2013 from a former BTH employee. One film (without sound) from the 1930s is of the production by BTH of its well-known Mazda branded light bulb and shows the complete process of manufacturing, packaging and distribution at its factory. A still from that film is shown below.



The second film (again without sound) is another BTH film, this time from the 1920s, and shows the company’s work on developing films with sound (the technology for synchronizing electrically recorded audio to a picture image on a commercial basis was developed by several competing companies in the US and UK in the late 1920s).



Coincidentally the IET Archives has several collections containing BTH material, in particularly a collection referenced as NAEST 74. NAEST 74 is a very large group of photographs and glass plate negatives of early BTH sites, equipment and manufacturing processes and installations, primarily covering its Rugby factory. It covers 28 albums and 13,000 glass plate from the period 1898 to 1939. The company products included induction motors, alternators, switchgear, turbo-generators and turbines, as well as a large number of rotary converters and motor converters, primarily for chemical plants. In the period before the First World War, BTH manufactured most of the equipment for railway electrification in Britain and equipped more than fifty tramway systems. In addition the company carried out a great deal of work for the new London Underground lines.

In the New Year the IET Archive online catalogue will be amended for those 16mm films that have been digitised to make it clear that digitised versions of the films are available. Anyone interested in a copy of the digitised films should contact the IET Archive Centre via phone on 020 7344 8407 or via e-mail using

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 23 December 2014 01:33 PM     Archives     Comments (0)  

December 17, 2014
Peter J Baxandall Condenser Microphone Papers

A file of papers recently deposited with the IET archives contained over 40 years’ worth of primarily technical notes, thoughts and ideas on the subject of the condenser microphone written by the audio and electronic engineer Peter J Baxandall. The notes cover the period from the early 1950s to the early 1990s. The condenser microphone, also known as a capacitor microphone or electrostatic microphone, was invented at Bell Laboratories in 1916 by E C Wente. Two images of a condenser microphone from amongst the Baxandall papers, probably of experimental models taken circa 1965, are shown below.




Baxandall (1921-1995), wrote a chapter on electrostatic loudspeakers for both the 1st edition (1988) and the 2nd edition (1994) of the Loudspeaker and Headphone Handbook, that is sometimes referred to as the seminal work on the subject. He also contributed chapters on 'power amplifiers, control units and preamplifiers' which appeared in the 1st and 2nd editions (1994 and 1999 respectively) of the Audio Engineer's Reference Book, edited by Michael Talbot-Smith. However, he had already gained significant attention in the early 1950s for his bass and treble circuit or tone-control circuit about which he published details in Wireless World, October 1952, and which was used in hi-fi audio systems.

Biographical Details for Peter J Baxandall

Peter Baxandall, born in 1921, was educated at Kings College School in Wimbledon before going on to study electrical engineering at Cardiff Technical College, Wales. He graduated with a BSc (Eng) in 1942.

Following graduation Peter spent two years as a radio instructor for the Fleet Air Arm before joining the Royal Signals and Radar Establishment (RSRE), based at Malvern, where he began work in the Circuit Research Division. He worked for the RSRE until his early retirement in 1971. After that Peter continued to work as an electroacoustical consultant.

Projects on which Peter worked as a consultant included; audio-frequency transformers, radio-frequency carrier microphones, powered loudspeakers, dipole and electrostatic loudspeakers, loudspeakers with motional feedback, bandbass loudspeakers, oscillators, high-speed tape-duplicating equipment, and high-precision microphone calibration methods.

Peter was closely associated with the Audio Engineering Society. He became a Fellow of the AES in 1980 and was awarded its Silver Medal in 1993 which is given in recognition of outstanding development or achievement in the field of audio engineering. Peter died in 1995 and an 'in memoriam' tribute to him was published in the Journal of the Audio Engineering Society, vol.44 no.9, September 1996.

Collection Contents

For anyone with a technical interest in microphones there are dozens of Baxandall’s handwritten notes detailing his experiments, ideas for solving problems, and thoughts and comments on published technical literature. The note titles, written in the first half of 1965 are shown below as an illustration of the types of material to be found.

'Data from advert by International in Journal of the AES', dated January 1965.

'Circuits of transistorized rf condenser microphones', based on article in the January 1965 issue of the Journal of the AES by H J Griese.

'Thoughts re tension and diaphragm in cardioid condenser microphone', dated April 1965.

'Thoughts on what should be done about rf microphone system', dated 19 May 1965.

'Design of miniature pressure capsule', dated 9 June 1965.

'Own thoughts on cardioid capsule theory', dated 19 June 1965.

Peter’s technical notes are interspersed with correspondence with microphone manufacturers, orders for materials for his experimental equipment, and discussions with others who had an interest in the field. It is interesting that there are several notes on the subject of Reg Williamson’s condenser microphone capsule because ultimately this file of material passed to Reg Williamson upon Peter’s death – there is a letter with the deposit dated 1996 (the year after Peter’s death) in which Reg recalls the visit to Peter’s house when he picked up this file of material on condenser microphones. Reg also recalls leaving ‘a vast amount of paperwork’ which he expected to be dumped.

The Peter J Baxandall papers have now been catalogued (reference SC MSS 260) and are available to view in the IET Archives. The contents of the collection can be viewed in the IET Archives online catalogue.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology

Edited: 10 February 2015 at 03:50 PM by Jonathan Cable


    Posted By: Jonathan Cable @ 17 December 2014 05:03 PM     Archives     Comments (0)  

December 15, 2014
Discover your engineering past at the IET Archives
Engineering history is rich and varied, full of innovation and pioneering achievements. The IET boasts some of the world's most famous electrical engineers, responsible for the creation of the telegraph, telephone and the revolution of the distribution of electrical power. At the IET Archives we are fortunate to have personal papers of individual engineers and corporate records that chart these developments. If you are interested in a particular aspect of engineering or tracing your family tree the collections within our archive can be an invaluable source.

Image of Oliver Heaviside and his family.

This blog has been written to promote the launch of our new family history leaflet. It supplements what you can find in the leaflet and on our website under the family history section.

Our heritage
The IET was founded in 1871 as the Society of Telegraph Engineers but through an amalgamation with the Institution of Incorporated Engineers in 2006 our predecessor institutions date back to 1854. The Society of Telegraph Engineers began as a learned society for those involved in the electric telegraph industry but to keep up with technological developments of the time it changed its name to the Institution of Electrical Engineers in 1889. Since then the IEE amalgamated with the Institution of Radio Engineers (IERE) in 1988 and the Institution of Production Engineers (IMfgE/IProdE) in 1991.

It's a family affair
If you are researching your family history or the life of an individual we may be able to help you with some details concerning their profession. Although the term 'electrical engineer' in the nineteenth century did not denote affiliation with a professional organisation if you see the post nominal MIEE (Member), AMIEE (Associate Member), or FIEE (Fellow) then they were members of the IEE.

Our membership application forms from 1871-1901 can help fill in the gaps about an individual's employment, education and social circles. The printed lists of members from 1871-1997 can trace geographical movement as well as mobility through the membership categories. It is now possible to browse a list of members from 1871-1930 online, view the full record and download an image of the original thanks to a partnership with

Part of this project was to digitise over 170,000 electrical engineer records. Records were selected and scanned on site at Savoy Place, London, using the most current scanning technology to produce high quality images. These are now fully searchable by name, date of birth, location and date of application. For more information on how to access these records please visit our family history section of our website

Other records to help further your study
If the person you are researching was not a member of our Institution we can still help by looking through the Electrical Trades Directory (known as the Blue Books) published from 1883. Within these pages are information on electrical firms, advertisements and an alphabetical classified section on individuals. We also have some other institutional records from the IERE, IProdE and IIE.

Occasionally an obituary or biography may have been written about certain members and published in the Journal of the Institution of Electrical Engineers (JIEE) or in the Blue Books directory.

In addition to paper records we also have some photographs, portraits and films of notable engineers. These include past Presidents, Faraday Medallists and Honorary Fellows.

Our military records can help to learn more about an engineer's role during the two world wars. Some contain biographical information such as the First World War Roll of Honour, which holds details on the member, where they were stationed, military action and how they died.

We also hold a number of interesting collections relating to women in engineering and science, education and the importance of domestic electricity.

Francis Hughes Webb, Secretary of the Socieity of Telegraph Engineers, seated with a child.

Contact us for some advice

If you would like to know more about our records please visit our family history pages on our website or see our new family history leaflet.

This leaflet was produced to highlight the varied collections we hold that may help with family history research. We want to reach new audiences to open up our collections and to assist those who are embarking on their family history with an engineering aspect. The images chosen illustrate the range of material we have to offer.

If you have any enquiries regarding your research please contact us for a chat, we are always happy to help.

Edited: 15 December 2014 at 11:00 AM by Asha Gage


    Posted By: Asha Gage @ 15 December 2014 10:26 AM     Archives     Comments (0)  

December 8, 2014
James H H Merriman Papers - President of IEE 1974-75

The IET Archives recently received a donation of papers belonging to James Henry Herbert Merriman who was the IEE President in 1974-75. The photograph above is the IEE’s formal black & white photograph of James taken at the start of his Presidential term. Perhaps surprisingly the IET Archives has very few collections of former IET/IEE Presidents who held that position after the Second World War so this collection was very warmly received.

Biographical Details for James H H Merriman

James Merriman was born in Pembroke, 1915. He was educated at King's College School, Wimbledon, and King's College, University of London. He obtained his BSc (Hons) in 1935 and did postgraduate research at King's College London obtaining his MSc in 1936.

James entered the GPO Engineering Department, Radio Research Branch, Dollis Hill, in 1936 and was associated with the development of long distance radio communication systems. From 1940 to 1948 James was Officer-in-charge at Castleton radio research station. From 1948 to 1953 he worked as Engineer-in-Chief, GPO London HQ on HF, VHF and microwave system development and planning.

In 1954 James went to Imperial Defence College and in 1955 he became Head of GPO Engineering Department O&M unit. From 1956 to 1959 he was Deputy Director Organisation and Methods Division, HM Treasury. He then became Assistant Engineer-in-Chief GPO with oversight of all transmissions including space systems in 1963, becoming Deputy Chief Engineer in 1965, Senior Director of Engineering in 1967, then Senior Director, Development.  Eventually James became Board Member for Technology 1969-1976. Other positions James held included Chairman National Computing Centre 1977-1983 and he was a member of the NEDC Electronics Committee from 1977-1983.

James who received an OBE in 1961 and his CB in 1969 was Faraday Lecturer 1969-1970, was made a Fellow of King's College in 1972, received an Honorary DSc from Strathclyde in 1974, became President of the IEE in 1974-75 and was made an Honorary Fellow of the IEE in 1981.

When James completed his term in office as IEE President, as was customary at that time, he received a certificate of thanks from the IEE Council which was signed by a Council member, and the new incoming President. James’ certificate is shown below.



Collection Contents

The deposited collection comprises primarily James’ published papers and articles, annotated typescript versions of lectures and a small number of photographs.

There are some nice black & white photographs from the 1969-1970 Faraday lecture. This was given by James on the subject of ‘people, communications and engineering’. The lectures were given around the country and took place over many weeks. The two photographs below show James on stage at one of the lectures and then the two GPO vans that were required to transport all the equipment need to support the lectures.




The James HH Merriman papers have now been catalogued (reference SC MSS 259) and are available to view in the IET Archives. The contents of the collection can be viewed in the IET Archives online catalogue.

Jon Cable
Assistant Archivist
The Institution of Engineering and Technology


    Posted By: Jonathan Cable @ 08 December 2014 01:23 PM     Archives     Comments (0)  

1 2 >> Next

FuseTalk Standard Edition - © 1999-2015 FuseTalk Inc. All rights reserved.