Section of laboratory at the Signal Corps School of Radio and Multiplex Telegraphy in New York. This area is dedicated to the construction of Signal Corps apparatus and preparation of diagrams. The photograph was taken on April 27, 1919, by photographer Reco. It is labeled as subject 58900 and classified as official use only with the AU notes section.

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Size: 8596px × 5874px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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