Luftwaffe Paratrooper Gravity Knife by Paul Weyersberg. This one is in excellent condition. The spring is tight. This is the non-takedown version. The spike is eagle “5” proofed. The blade is really nice with all of the crossgaining and some light in and out runner marks toward the tip. This one is a keeper. The thumb lever and the base where the thumb lever attaches are numbered “55” with this being a function of production to match up the correct hand fitted parts. A really nice knife!