Signal pistol. A composite plaque was applied to either side of the butt to form a grip; the rest of the pistol is made of steel. There is a lanyard attached to the base of the butt. Single action. The barrel is a plain steel tube, smooth bore and of circular external section. The calibre is 1.5in. Inscribed on the pistol is the serial number '5155 USGG NO 160 KILGORE CORPORATION MODB TOONE TENN'.