This Model 2 variant of the Model 1855 revolver series was manufactured in 1856 and has finely detailed acanthus scroll engraving with punch-dot backgrounds and track line borders covering approximately half of the metal surfaces that is closely follows engraving on the revolvers on page 74 of "The Book of Colt Engraving" in the section covering Master Engraver Gustave Young. "John Dunlap" is inscribed in script on the back strap, and a banner is engraved around the main serial number on the butt. The man specified in the inscription is not documented which leaves a great many possibilities given the commonality of the name. The most famous man of that name in the U.S. was John Dunlap (1747-1812), official printer to the Continental Congress, and the printer of the original copies of the Declaration of Independence. (Obviously not him as the revolver was made after his death.) Many of his descendants carried on that name, including one of his sons and grandsons who lived in Sangamon County, Illinois, in the period which was represented by Abraham Lincoln in the state legislature and U.S. Congress. The barrel has a post front sight, "[manicule] +COLT'S PATENT/1855+" and "ADDRESS COL. COLT/HARTFORD, CT USA+" on top, and the matching serial number on the bottom.

Fine with strong patches of original blue finish on the sides of the forward section of the frame below the barrel and the protected areas, gray and brown patina on the balance, crisp engraving and markings other than the cylinder scene, some light oxidation and pitting concentrated on the cylinder, and mild overall wear suggesting the gun was actually used and carried. The hammer has been professionally casehardened, and is most likely a replacement. The grip is very good other than chips on the heel on the right and the toe and minor age cracks and displays attractive natural tones and patterns. Mechanically fine. This is a very attractive and scarce revolver most likely engraved by Gustave Young and also inscribed. It would be an excellent addition to any collection of antique Colt firearms.