Thomas Edison conducting secret experimental work at the Key West Naval Station during World War One. This photograph was taken on March 7, 1918, and released by the War College Division on March 21, 1918. Edison's work at the naval station was in support of government objectives.

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Size: 7983px × 6305px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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