Image depicts a " gun with a split trail open, located on the proving grounds of Bethlehem Steel Company in Bethlehem, PA. The photo was taken on September 24, 1918, by a photographer from the company. This image is marked for official use only with the reference number 962A.

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Size: 8387px × 5740px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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