Interior view of an American military dugout during World War One, as captured in photograph number 29640. The image shows a gas-proof curtain or door, providing protection against the threat of poisonous gases on the battlefield. This photograph was taken by the Signal Corps, AEF in 1918.

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Size: 8417px × 5575px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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