MATCHING NUMBERS INCLUDING CYLINDER**MINT BORE**AMERICAN CIVIL WAR**1865 Colt New York Pocket Model of 1849 .31 Calibre, Cap And Ball, 5 Shot, Single Action, Revolver With Cylinder Scene & Octagonal Barrel. Sn 21657 Single Action, Revolver With Cylinder Scene & Octagonal Barrel. Sn 21657 .31 Muzzleloader