A photograph showing the K4 submarine submerging during a practice dive at Key West Naval Station, Key West, Florida. The image was taken by Lieutenant Kingsmore of the Signal Corps on March 5, 1918, and received on March 20, 1919. It was censored, released, and issued by the War College Division Laboratory on March 21, 1913.

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

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