Only an estimated 500 of these 20 gauge small frame revolving shotguns were manufactured c. 1860-1863 based on the upscaled Model 1855 Pocket design making this classic shotgun among the scarcest Colt percussion firearms. The round barrel has a nickel-silver bead front sight and an under-rib with two pipes holding the main section of the cleaning rod. The top strap groove has "COL. COLT HARTFORD CT. U.S.A." The left side of the frame and one of the cylinder flutes have the patent markings. The matching serial number is on the barrel, inside of the forearm (pencil), bottom of the frame, and toe of the buttplate. It is mounted with a smooth forearm with German silver forend cap and escutcheons and a multi-point checkered buttstock with shotgun buttplate.

Very good with strong traces of bright original blue in the protected areas of the frame mainly by the hammer, mix of faded original finish and some artificial brown on the barrel along with gray and brown patina, mild pitting mainly on the frame and cylinder, and general moderate overall wear. The refinished wood is very good and has a repaired crack in the wrist, crisp checkering, and general minor dings and scratches. Mechanically excellent.