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File:U.S. Naval Submarine Base, New London Submarine Escape Training Tank, Albacore and Darter Roads, Groton, New London County, CT HAER CONN,6-GROT,3A- (sheet 2 of 3).png - Wikimedia Commons
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File:U.S. Naval Submarine Base, New London Submarine Escape Training Tank, Albacore and Darter Roads, Groton, New London County, CT HAER CONN,6-GROT,3A- (sheet 3 of 3).png - Wikimedia Commons
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