Signal Corps apparatus for airplane antenna reel (French type) radio apparatus in use during World War I. The photograph was taken in 1919 by an unknown photographer. The image shows a prototype

Radio apparatus for airplane use hi-res stock photography and images - Alamy

Signal Corps radio apparatus airplane generator on display in a photograph taken in 1919. The image shows the specific apparatus used for generating radio signals aboard airplanes. This photograph is part of

Signal corps radio apparatus hi-res stock photography and images - Alamy

Airplane apparatus hi-res stock photography and images - Page 3 - Alamy

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French aeroplane world war i hi-res stock photography and images - Alamy

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January, 2016

Airplane antenna reel hi-res stock photography and images - Alamy

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S.C. airplane radio apparatus in Washington, D.C. The photo was taken on April 17, 1919, by Sergeant McKenzie. It shows the S.C. airplane radio apparatus with a regulating air fan type F-A