(Kriegsabzeichen für Minensuch-, U-Boot-Jagd- und Sicherungsverbände). Constructed of gilded and silvered zink, the obverse consisting of an oval oak leaf wreath, joined together at the bottom by ribbon, topped by a Kriegsmarine eagle clutching a mobile swastika, around a central depiction of a sea mine exploding, the reverse with a block hinge and tapering vertical pinback meeting a round wire catch, maker marked with the logo of Rudolf Karneth, Gablonz, measuring 44.43 mm (w) x 54.94 mm (h), weighing 20.4 grams, with loss of finish throughout, in very fine condition.