A .22, .32, .38 or .41 rimfire single-shot pistol, with half-octagonal barrels ranging in length from 3" to 5". Barrel marked "Rupertus Pat'd. Pistol Mfg. Co. Philadelphia". Blued, with walnut grips. Approximately 3,000 made from 1870 to 1885. NOTE: The .41-caliber variety is worth approximately 200 percent more than the values listed.