This model was manufactured between 1861 and 1874, this revolver was very successful commercially. Many of these were used as personal side arms by Civil War soldiers, as it was the only weapon able to fire self-contained cartridges and be easily carried as a back up by soldiers going off to war. The top of the barrel rib is marked "SMITH & WESSON SPRINGFIELD, MASS.". The serial number is marked on the butt. German silver blade front sight, 6-shot, unfluted cylinder is roll engraved with the S&W 1855, 1859 and 1860 patent dates around the center. The frame has a spur trigger and three-pin top strap. Fitted with smooth two-piece ivory grips.