INFRA-RED

warning: Creating default object from empty value in /home/richardf/public_html/dev/modules/taxonomy/taxonomy.pages.inc on line 33.

Transfer document for shares in television pioneers Radiovisor Parent Limited, signed by Alan James Macnab.

Author: 
[Radiovisor Parent Limited, London; Alan James Macnab; television]
Publication details: 
Undated [1920s]; H. Howes & Co., Ltd, Stock Exchange Stationers, London.
£56.00
Radiovisor Parent Limited, London

Folio, 1 p. A printed document, with specific details typed in. Fair, on aged paper, with some wear to extremities. Signed 'Alan J. Macnab', and witnessed by G. Perry of Tokenhouse Yard. A pioneer in the field of television, Radiovisor Parent Co., Ltd. was formed on 31st May, 1928, with a capital of £276500, and owned the rights in a selenium light bridge patented in 1927 and 1928. It had made history in 1927 with the invention of the first ever infra-red beam, this technology being used to protect the Shah of Persia's jewels at an exhibition in 1929.

Keywords:

Typed Letter Signed to G. K. Menzies, [Secretary,] Royal Society of Arts.

Author: 
Olaf Frederick Bloch [INFRARED PHOTOGRAPHY; ILFORD LIMITED]
Publication details: 
30 June 1933; on letterhead of 'ILFORD LIMITED | Manufacturers of Sensitised | Photographic Materials'.
£75.00

Anglo-Danish research chemist (died 1944), a pioneer of infrared photography. One page, quarto. Very good, though a bit grubby and with a few small staple holes. 'Will you kindly thank the Council of the Royal Society of Arts for the honour conferred upon me in awarding to me a silver medal for my paper on Infra-Red Photography.' He will be present at the 'opening meeting of the next session'. Signed 'Olaf Bloch'.

Keywords:
Syndicate content