German naval officer (1908–1941) who sank more than thirty Allied ships, including the British battleship Royal Oak, and was the first U-boat commander to win the Knight’s Cross; he died when his own submarine, U-47, was sunk in March 1941. Scarce and dramatic vintage matte-finish 8.75 x 8 photo of a nearly completely submerged ship that had just been torpedoed, signed in fountain pen, “Prien.” In fine condition, with a few light bends, mild edge wear, and fair contrast to signature resulting from dark background. R&R COA.
