Scale 1:48. Plan shows the sections, as fitted, of the T-class submarine Tarpon (1939). The drawing includes the forward sections at Frames 8, 21, 30, 37, 50 and 66 and the aftward sections at Frames 80, 86, 95, 107, 119, 126, 138, 147 and 150. There is a Scott's Shipbuilding stamp dated 11 March 1940. Another Scott's Shipbuilding stamp with the signature of the Admiralty Overseer B. J. Lovatt, dated 13 March 1940, is also present on the plan.