U-52, a Type VIIB submarine.
The crew of a German UC-1 class submarine on deck (WWI).
U-570, a Type VIIC submarine that was captured by the British in 1941. The type VIIC was the backbone of German submarine fleet, 1943.
U-3008, a Type XXI submarine, at Wilhelmshaven, Germany. June 1945.
U-660, a Type VIIC submarine, surfacing after being depth charged by HMS Lotus and Starwort. November 1942.
A Type VII and a Type IX submarine alongside each other outside the submarine pens at Trondheim after the war. May 1945.
U-505 preserved at the Museum of Science and Industry, Chicago, IL, USA.
German museum ship U-9, a Type 205 submarine now placed in Technikmuseum Speyer.
German U-boat from WWI. Engraving from London Illustrated News, Feb 20 1915.