Sgt. J. L. McGarrigle at Signal Corps School in Camp Meade, Admiral, MD. The photograph shows an instruction chart being used during a lecture on communication. The photo was taken on December 23, 1918, and was approved by the censor on December 30, 1918. Grade 3 lecture, number 10. Communication installation complete.

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Size: 8456px × 5695px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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