TRESCH KNIFE PISTOL AND ALARM GUN. This unique example of a Tresch knife pistol is a single shot percussion, with a 4 inch double edge spring blade and bone grips. When pressed backward, the tip releases from the cup under the muzzle. This releases it to be used as a rammer. The rammer is attached on the underside; you press backward on it and the tip releases from the cup under the muzzle. This allows it to be used as a rammer. The .33 caliber barrel is 5 inches long. The trigger is designed to serve double duty as an awl so the piece can be used as an alarm gun. The left grip is inscribed “Le Blendel” and the right grip is inscribed “G.Gerard.” This one is listed on Gunbroker.com for sale.