The Volcanic Arms Company manufactured only an estimated 1,500 Navy Pistols with 8 inch barrels between 1855 and 1857. This pistol has an 8 inch octagon barrel with an integral 10-shot magazine, a brass receiver, and the distinctive loading lever with finger hole. The receiver has a dovetail mounted notch rear sight, semi-circular cut-out at the front of the ejection port, and bolt with single hook extractor. The top barrel flat is roll-stamped with: "THE VOLCANIC/REPEATING ARMS CO./PATENT NEWHAVEN CONN. FEB.14.1854" in three lines. The matching serial number is located on the right side of the loading lever, right side of the butt beneath the grip, and stamped on the inside of both grips.