877548 .44-40 \'Model 1873\' six-shot single-action Army revolver, by Colt, Hartford, 1881 (walnut & nickel-plated metal) by American School, (19th century); Private Collection; (add.info.: Serial no. 67295, with sighted barrel with one-line \'Colt\'s pt. f. a. mfg. co. Hartford Ct. USA\' address, frame marked with 1872, 1872 and 1875 patent dates, and one-piece walnut grips each incised with three notches, the barrel retaining some original nickel-plated finish, the cylinder, frame, trigger-guard and ejector-rod housing retaining traces of original nickel-plated finish 19cm barrel); Photo 穢 Christie\'s Images; American, out of copyright.