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

World war i radio equipment hi-res stock photography and images - Alamy

A photograph taken in 1919 of airplanes in flight. This image is part of the collection titled 'Photographs of American Military Activities during World War One'. The photograph is identified with the

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

USMC A-4M SKYHAWK – toylandhobbymodelingmagazine

Guide to the American Petroleum Institute Photograph and Film Collection, 1860s-1980s

BC-792-A

World war i radio equipment hi-res stock photography and images - Alamy

Airplane signals hi-res stock photography and images - Page 2 - Alamy

Azdoc - PL Crowood Aviation Series Douglas A 26 and B 26 Inva, PDF, Douglas Aircraft Company

Signal Corps Apparatus - Airplane Antenna Reel (French Type-K) radio apparatus. This photograph was taken in 1919 and is labeled with the designation 111-SC-2215. It shows a piece of equipment used by

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

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

Signal achievements in Army history (photos) - CNET

WWII_Radio_Direction_Finders