German World War II Luftwaffe Paratrooper Fallschirmjager Combat Gravity Knife. Measures 10 1/8in long overall with the blade open. The steel blade measures 13/16in wide by 4in long. The spike is stamped with the eagle '6 ' issue mark. It is also marked 'R B Nr 0/0561/0019 '. Has a pair of wood grips. This is the take down version.