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History's Greatest Mysteries: Shipwrecked WWII Gold in Lost Submarine (Season 2) | History - YouTube
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U-boat. The german submarine u-47 was a type viib u-boat of nazi germany's kriegsmarine during world war ii. | CanStock
Das U-Boot in Farbe - The U-250 was a Type VIIC U-boat of German Kriegsmarine during World War II. She was laid down on 9 January 1943 at the Friedrich Krupp Germaniawerft
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