Model of Bushnell's Turtle, world's first operational combat submarine which attacked British ships in New York Harbor at Submarine Force Museum. Groton, CT.

Model of Bushnell's Turtle, world's first operational combat submarine (1775) which attacked British ships in New York Harbor at Submarine Force Museum. Groton, CT.

Model of Bushnell's Turtle, world's first operational combat submarine (1775) which attacked British ships in New York Harbor at Submarine Force Museum. Groton, CT.
Photo by Jim Steinhart © 2013, all rights reserved. (Ref: CTNS211)

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