Total production of Model 1860 Army Richards conversion revolvers is estimated at approximately 9,000 in 1871-1878. The serial number on this revolver would date to 1871in the regular percussion Model 1860 Army range. It has a German silver blade front sight, hammer notch rear sight, New York barrel address, standard patent markings and cylinder scene, "C" and "44 CAL" on the left side of the trigger guard, "1456" on the loading gate, and matching visible serial numbers.