DETAILS OF SUBMARINE SECTION, Y&D No. 107727 Scale 3/8′ and 1-1/2′ = 1′; July 2, 1929 – U.S. Naval Submarine Base, New London Submarine Escape Training Tank, Albacore & Darter Roads, Groton, New London County, CT. Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey.
