.31 caliber. 4" octagonal barrel. SN: 271086 (mfg. ca. 1865). Single action percussion revolver with six-chambered un-fluted cylinder, hammer nose notch rear sight and brass post front sight. Barrel with one-line "NEW-YORK U.S. AMERICA" address, frame with weak COLT'S/PATENT mark, cylinder with weak traces of cylinder scene and partially legible markings. Matching number 271086 on barrel, frame and cylinder. Backstrap and triggerguard mismatched and numbered 319404. Wedge is a modern replacement, loading lever is not numbered.