Soldier wearing a gas mask with a canister on the back of their head. This photograph, taken on April 2, 1919, shows a member of the Chemical Warfare Service with the identification number AU. The canister on their head indicates that they are equipped for protection against chemical weapons.

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Size: 8433px × 5771px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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