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Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 17

Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 17

Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 17

Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 11

Letter from Emile Berliner to Roy M. Allen, 1926 Nov. 18

Letter from Roy M. Allen to Emile Berliner, 1926 Oct. 18

Letter from Roy M. Allen to Emile Berliner, 1926 Oct. 23

Letter from Emile Berliner to Roy M. Allen, 1926 Nov. 18

Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 13

Letter from Roy M. Allen to Emile Berliner, 1926 Nov. 20

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Tags

microphone photomicrography microphotography berliner emile correspondence emile berliner collection 1871 1965 series 6 correspondence 1871 1926 1946 1955 emile berliner collection 1871 1965 emile berliner and the birth of the recording industry motion picture broadcasting and recorded sound division roy morris allen emile berliner manuscript ultra high resolution high resolution
date_range

Date

01/01/1926
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Source

Library of Congress
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Link

https://www.loc.gov/
copyright

Copyright info

Public Domain

label_outline Explore Roy Morris Allen, Photomicrography

Photomicrography on generator flywheel. Photograph taken July 27, 1960. Bevatron-2084

Bureau of Standards speeds up photomicrography with new apparatus. Washington, D.C., Aug. 18. By means of this new apparatus just designed by the metallurgical divisions of the National Bureau of Standards, it is now possible to make 700 micrographs per working day of the structural effect of corrosion on cross sections of metallic specimans. This new machine uses roll film of 900 negatives at one loading, thus dispensing with the repeated loading and unloading of individual film holders by which method the Bureau was only formerly able to make 12 micrographs per working day. Willard H. Mutohler, one of the designers of the apparatus is hown photographing the corrosion on airplace materials, 8/18/37

Telegram from Emile Berliner to Roy M. Allen, 1926 Nov. 11

Letter from Emile Berliner to W. L. Richards, 1926 Nov. 15

Telegram from Emile Berliner to Roy M. Allen, 1926 Nov. 11

Telegram from Emile Berliner to Roy M. Allen, 1926 Nov. 4

Telegram from Emile Berliner to Roy M. Allen, 1926 Nov.10

Letter from Emile Berliner to Roy Allen, 1926 Oct. 6

Telegram draft? from Emile Berliner to Roy M. Allan (sic), 1926 Oct. 26

Telegram from Emile Berliner to Roy M. Allen, 1926 Nov. 8

Letter from Emile Berliner to Roy M. Allan (sic), 1926 Oct. 12

Telegram draft? from Emile Berliner to Roy M. Allan (sic), 1926 Oct. 26

Topics

microphone photomicrography microphotography berliner emile correspondence emile berliner collection 1871 1965 series 6 correspondence 1871 1926 1946 1955 emile berliner collection 1871 1965 emile berliner and the birth of the recording industry motion picture broadcasting and recorded sound division roy morris allen emile berliner manuscript ultra high resolution high resolution