.36 caliber. 4.5" barrel. SN: 10679. Blued finish, color casehardened hammer, silver plated brass triggerguard, two-piece smooth varnished walnut grips. Single action percussion revolver with five-chambered un-fluted cylinder, grooved top strap rear sight and half-moon German silver front sight blade. Barrel with three-line address and patent marking. Matching serial numbers on left of frame under grip, under barrel and in pencil in both grips.