Soldiers during World War One using canisters on top of their heads without filters. This photograph was taken by a Chemical Warfare Service photographer on April 2, 1919. The description notes the canister number as AU and mentions that this was issued without any additional filter.

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

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