.36 caliber. 7.5" round barrel. SN: 30889 (mfg. ca1867). Blued and color casehardened finish, silver plated brass backstrap and triggerguard, one-piece walnut grip. Single action percussion revolver with six chambered smooth, round cylinder. Barrel marked in a single weak line: - ADDRESS COL SAML COLT NEW-YORK U.S. AMERICA - with the lower left side of the frame marked COLT'S/PATENT and the left rear triggerguard web marked 36 CAL. Matching numbers throughout with the exception of the wedge and grip which are both unnumbered. Cylinder with much of the Texas and Mexican naval battle scene. Rear sight notch in nose of hammer, German silver blade front sight. Grip somewhat ill fitting. A nice honest example of a post-Civil War production "round barrel" Navy revolver.