This image shows the main switchboard and operators at Camp Knox, KY during World War One. It captures the telephone installations used for military communication during the war. The photograph was taken by S. C. on April 2, 1919, and has the issued number 43157.

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Size: 8495px × 5666px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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