badge, award, German, U-Boat War Badge | Imperial War Museums
badge, German, U-boat War Service badge in gold | Imperial War Museums
U-Boat Badge 1939 (Silver) - War Militaria
U-boat War Badge with Diamonds (U-Boot-Kriegsabzeichen mit Brillanten) - Military decorations - German U-boat commanders - Kriegsmarine - World War Two (WWII) - uboat.net
A German WWII Kriegsmarine U-Boat Submarine War badge, the reverse stamped Munchen 9, the pin stampe