October 17, 1939: U-47 passing the cruiser Emden while returning to Wilhelmshaven, Germany, following the sinking of HMS Royal Oak. Kapitänleutnant Günther Prien on the conning tower.

October 17, 1939: U-47 passing the cruiser Emden while returning to Wilhelmshaven, Germany, following the sinking of HMS Royal Oak. Kapitänleutnant Günther Prien on the conning tower.