A group of three WWI and WWII Nazi German Kriegsmarine U-Boat badges. A WWI U-Boat War badge, featuring a submarine laid across the center of the wreath, adorned by the German State Crown at the top, a WWII U-Boat War badge, featuring a submarine laid across the center of the wreath, adorned by the Nazi eagle clutching a swastika. A WWII U-Boat Front Clasp, incorporating a central laurel wreath with a stylized submarine and wings of oak leaves, while two crossed swords decorate the bottom of the wreath. Second World Wars German Badges And Military Decorations For Collectors.