Colt only manufactured approximately 1,100 revolving shotguns split between 10 and 20 gauge between 1860 and 1863. These were also known as the Colt New Model Revolving Shotguns and are in basic design an enlarged version of the Colt Model 1855 Pocket revolvers. Most were fitted with 27 inch barrels, but this one has a rarer 30 inch barrel. It also features a brass bead front sight, "H. JACOBS" stamp on top at the breech end of the barrel (likely a prior owner or possibly a retailer), "COL. COLT HARTFORD, CT. U.S.A." in the top strap groove, "COLT'S PATENT/+/NOV. 24TH 1857." on the left side of the frame, "PATENTED SEPT. 10TH 1850." in one of the cylinder flutes, matching serial numbers visible on the buttplate at the toe and the bottom of the action, smooth forearm with brass cap and nickel-silver wedge escutcheons, and checkered shotgun buttstock (checkered wrists were standard on .75 caliber/10 gauge shotguns). A cleaning rod extension and worm are contained in the butt in a compartment with a screw on lid.