![](http://www.alamy.com/thumbs/6/1EC61C5F-12F2-4D51-8C15-C0EB1E0E9119/2RC4T0K.jpg)
An American soldier operating a Signal Corps apparatus during World War One. The soldier is seen wearing a gas mask as protection, and is communicating information through the device. This photograph was taken by a Signal Corps photographer as part of their documentation of military activities.
Size: 8412px × 5734px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: activities, advancements, american, apparatus, archival, army, artifacts, camp, communication, corps, description, devices, documentation, equipment, headquarters, historic, historical, history, ibled, infantry, intelligence, methods, military, network, notes, operations, photo, photograph, photographer, photojournalism, recording, secure, signal, soldiers, strategy, symbol, system, tactical, tactics, takes, technology, telecommunication, tools, war, warfare, wartime, world