I have a Case brand USMC fighting knife that was given to me. The blade is parkerised 1095 and the handle differs slightly from the Kabars I have. Nothing on the Case website tells anything about it. Does anyone know anything about these. I have been told its a copy of a prototype submitted to the war department. The ricasso has 1992 stamped on it. Obviously the year of manufacture. This knife has me very curious. Its new so should I leave it or use it?