2/27/18 - This is an original WW2 Luftwaffe Gravity Knife. The knife is in excellent condition with a luftwaffe eagle/5 proof stamp on the pointed pick extension. The drop blade is "SMF" maker stamped and in excellent condition. There is some light surface wear but overall the blade is very clean. The "spine" of the blade has light ding marks - shown in photos. The wood handle is in excellent condition. Guaranteed original.