Built on a top-break frame manufactured between 1886-1913 with a total production of 15,340. Although cataloged until 1913, all frames were manufactured prior to 1899 making the entire production of this model classified as an antique for ATF purposes. The top of the barrel rib is marked with the two line address/patent dates, (changed to one line address around 1900), and the matching serial number is marked on the butt, rear cylinder face, barrel latch and inside of the right grip panel. Pinned blade front and notch rear sights, blue finish with casehardened hammer and trigger, and fitted with checkered hard rubber grips with "S&W" monogram at the top and patent date on the lower left panel.