Very good condition original WWII German Luftwaffe Fallschirmjager (paratrooper) gravity knife that is maker marked “SMF SOLINGEN” on the left ricasso. Knife works properly. Blade has original bright finish and has been sharpened. Spike has a Luftamt 5 proof mark. Wood grips have original finish and a good tight fit with some normal handling marks. Guard has some dings. A nice Luftwaffe gravity knife for your collection.