Workers at the Darling Brothers Plant in Montreal, Canada, manufacture " shells for the Government. The photograph captures the process of performing a Brinell Testing to measure the hardness of the shells. This image was taken on October 4, 1918, and is part of a collection documenting American military activities during World War One.

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Size: 8445px × 5800px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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