Trench warfare demonstration at Aberdeen Proving Grounds, MD. A firing line with 6" guns is visible on the left, while civilians and officers watch. This photograph was taken on November 13, 1918, and approved by the censor on November 18, 1918. Note: Reference number 026378.

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Size: 8397px × 5643px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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