An American military officer instructs students on how to adjust their gas masks at the Gas School, 1st Corps, School, Gondrecourt, France. The photograph was taken by Sgt. Marshall and is numbered 19696. The image was issued and passed by the censor, with no specific date provided.

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Size: 8419px × 5680px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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