Sulby (British Steam trawler) - Ships hit by German U-boats during WWII - uboat.net
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German U-Boat Captain – 1941 – ESSMC
What was the saw-like structure on the bow of a Type VII U-boat for? - Quora
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The U-Boat Peril: An Anti-Submarine Commander's War: Whinney, Bob: 9780713718218: Amazon.com: Books
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THE U-BOAT WAR IN THE ATLANTIC, VOLUME III, 1944-1945 - HamiltonBook.com
Able Seaman Bob Haden | laststandonzombieisland
Unterseeboot U.99 Submarine – ESSMC
The U-boat War In The Atlantic Volume 1: 1939-1941: Carruthers, Bob: 9781781580578: Amazon.com: Books
What was the saw-like structure on the bow of a Type VII U-boat for? - Quora
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The U-Boat War (World War II from Primary Sources): Carruthers, Bob: 9781906783402: Amazon.com: Books
What was the saw-like structure on the bow of a Type VII U-boat for? - Quora
The U-boat War In The Atlantic Volume 2: 1942-1943 by Bob Carruthers, Paperback | Barnes & Noble®
