Intensive testing of the back G-52 intermittent canister testing machine by the Chemical Warfare Service during World War One. This photograph was taken by photographer 54777, Reco, on April 2, 1919. The machine played a crucial role in evaluating canister functionality. Notes indicate a reference to a previous version from 1904.

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Size: 8486px × 5794px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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