Official Caption: "COAST GUARD CUTTER SINKS SUB: Last sight of the doomed German U-Boat that the U.S. Coast Guard Cutter SPENCER'S crew see is the bow disappearing below the North Atlantic. The U.S. Coast Guard Cutter DUANE is shown at the right. The DUANE screened her sister ship, the SPENCER, from possible attack by another U-Boat during the battle." Date: 17 April 1943 (Note on the back of the photo notes: "Not to be released for publication or announced to the public before 10:00 A.M. Eastern War-Time, June 2nd."); Photo No.: 1549 Photographer: Jack January Source - NARA