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NOAA Photo Library Image - ship3238

Submarine signal apparatus installed on a lightship and ready to be lowered to 25 feet below the surface. In "Submarine Signaling," Scientific American Supplement, No. 2071, pp. 168-170, Sept. 11, 1915.

Image ID: ship3238, Voyage To Inner Space - Exploring the Seas With NOAA Collect


High Resolution Photo Available





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May 12, 2014