Sandy Hook's Ordnance Proving Grounds, where guns undergo testing prior to service and mounting on permanent carriages. Photographed by Sgt. Combs on June 24, 1919, with identification number 60772 ECID 7-21-19. This image is marked with a symbol A indicating it is strictly intended for official use and not for publication.

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Size: 8493px × 5800px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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