An American military officer holding a 25mm signal pistol with a cartridge for aerial use during World War One. This pistol was designed for issuing colored flash signals from airplanes. The photograph was taken in 1918 by a photographer from the Air Service.

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Size: 9178px × 6297px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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