Image caption: "German Field Telephone Switchboard, front view, fully set up at the Research and Inspection Bureau in Paris, France. This photograph was taken by Sgt. Gallivan on December 13, 1918. Not for publication, for official use only."

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Size: 8445px × 5681px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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