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File:German WW2 U-boat submarine U-586 Polar bear emblem of 11 U-Flottille 11th Flotilla Bergen Eismer Arctic Ocean Miniature models Zifferblatt Maschinentelegraph U-boot Hagenuk chadburn etc Lofoten krigsminnemuseum Museum Norway 2022-02-2.jpg - Wikimedia
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U-Boat 480: The Hunt For Nazi Germany's Rubber Stealth Submarine | Deep Wreck Mysteries | Timeline - YouTube
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Wreck of WWI German Submarine Sunk by 'Sea Monster' Found Off Scotland's Coast | The Weather Channel
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Battle of the Atlantic: Archaeology of an Underwater WWII Battlefield: Mission Logs: September 4: NOAA Office of Ocean Exploration and Research
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