A photograph of a smoke box filter canister before assembly, taken by H. H. Clark, a member of the Chemical Warfare Service's Research Division during World War One. The image was received from the Research Division on July 12, 1918. This canister was used for mechanical research purposes by the Chemical Warfare Service.

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Size: 8441px × 5741px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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