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

Original WWI Era U.S. Army Signal Corps Telegraph Buzzerphone Type EEI – International Military Antiques

Signals corps photographer hi-res stock photography and images - Alamy

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

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

Airplanes in world war i hi-res stock photography and images - Page 2 - Alamy

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

History of the Bureau of Engineering During WWI

The History of Traffic Analysis – WWI – Vietnam Part 1 of 8 – Station HYPO

Signals corps photographer hi-res stock photography and images - Alamy

Telecommunication transmission in war hi-res stock photography and images - Alamy

Airplane antenna reel for French type K apparatus in 1918, captured in photograph 111-SC-2214. Photographer is from the Signal Corps, taken in 1919. The reel, designated C 2214, is part of the Syndol airplane antenna reel used during World War I Stock

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

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

U.S. Signal Corps Field Telephones Timeline

Image: The photograph shows a French type K transmitter used during World War I. The transmitter is labeled as a Cuplanes-RECO French Tippe K Transmitte AC 50 Watto DC - 55 Watts