Image shows Sgt. James J. McGarrigle using a 14 Field Signal projector. His finger is on the sending key and the sight on top of the lamp is used to aim at the receiver on the other end. Taken on August 27, 1918.

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Size: 8401px × 5647px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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