Germany, Kriegsmarine. A Wartime Signed Portrait Of U-Boat Ace Karl-Friedrich Merten Auction Archive emptying his revolver into their

emptying his revolver into their ranks

maker marked “RZM M9/240” (W

crossed swords through centre of medallion

German DRL Badge is marked "D

Germany, Kriegsmarine. A Wartime Signed Portrait Of U-Boat Ace Karl-Friedrich Merten Auction Archive emptying his revolver into their(Kriegsmarine Portrt mit Unterschrift). A rare wartime signed portrait of U Boat ace Karl Friedrich Merten, depicted in uniform and with an extensive array of decorations clearly visible, the image overlaid by Mertens handwritten signature in black ink, the reverse with studio marks and an illegible date stamp, measuring 102 mm (w) x 148 mm (h), in extremely fine condition.