This photograph shows a monocord switchboard, modified to include operators' cord terminals. It was taken by Pvt. Earl E. Evans of the Signal Corps on December 2, 1918. The switchboard was used by the Research and Inspection Bureau in Paris, Seine, France. This image is marked as not for publication and for official use only.

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Size: 8513px × 5781px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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