Soldiers in the Army operating a field switchboard. This equipment belongs to the Signal Corps and is marked with the symbol "C AU." Photograph taken on March 10, 1921. Additional details about the image such as its whereabouts or the significance of the markings are not available.

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Size: 8525px × 5810px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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