"Demonstration of Morse code communication at the Signal Corps School for Enlisted Specialists, Camp Alfred Vail, New Jersey. This photograph, taken by the Signal Corps on March 10, 1921, depicts an instructor teaching students how to use the signaling equipment. Cataloged under Note B #69058."

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Size: 8423px × 5731px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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