Front view of a Marconi radio receiver used by the Intelligence Section of the Signal Corps, Army, Division of Research and Inspection in Paris, France during World War One. The receiver was capable of receiving waves ranging from 175 to 750 meters in length.

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Size: 8434px × 5695px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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