19-N-46405

USS Sturgeon (SS-187) At the Hunters Point Navy Yard, San Francisco, California, 23 April 1943, following overhaul. White outlines mark recent alterations, among them the relocation of Sturgeon’s 3/50 deck gun, installation of watertight ready service ammunition lockers in her sail, and fitting of 20mm machine guns. Note the large concrete weight on deck, indicating that Sturgeon was then undergoing an inclining experiment to check her stability. 19-N-46405