Manufactured circa 1857-1858, this revolver has the rare "bayonet" or "flat" style barrel latch found only on the Model 1 1st Issue, 1st and 2nd Type revolvers. Smith & Wesson only manufactured approximately 900 of these Model 1, 1st Issue, 2nd Type revolvers. The top of the barrel rib is marked with the one-line address and the patent dates are marked around the cylinder. The matching serial number is marked on the butt, front face of the cylinder, back of the barrel lug and stamped inside of the left grip panel. Blade front and notch rear sights, silver plated brass frame with blue remaining parts and fitted with smooth rosewood grips.