Manufactured from 1865 to 1868. German silver half moon sight on the barrel rib with the two line address and patent markings. Casehardened hammer, ejector rod and spur trigger. Blue barrel frame and cylinder and varnished square butt rosewood grips. The assembly number "r1" is stamped on the face of the barrel, cylinder and grip frame. Matching serial number is stamped on the right grip stock, the screwed-in ejector on the underside, and a notch rear sight in the casehardened hammer.