The factory referred to this model as the New Model 1 1/2, manufactured between 1868 and 1875. The top of the barrel rib is marked with the two line Springfield, Mass. address/patent and reissue dates. The two patent date markings are on the top strap. The matching serial number is marked on the butt, rear cylinder face, barrel latch and rear of the top strap. Pinned blade front sight and notch rear sight, nickel finish with casehardened hammer and fitted with checkered hard rubber grips with the intertwined "S&W" logo at the top. Comes in an original wooden case with wine colored velvet lining and 40 round bullet block.