"This brass pipe, with the inscription: 'JO 10 ... 3-O-5091-05; DM 263-109-61; PL-1862791 PC.75; 1.050 Brass Pipe; 593 Boat', was recovered by the bathyscaph Trieste during the second series of dives in the search for USS Thresher. The nuclear powered submarine which sank April 10 some 220 miles east of Cape Cod had the hull number '593'."
The original view, from whose caption the quoted text is taken, was released on 13 September 1963.
Official U.S. Navy Photograph, from the collections of the Naval Historical Center.