This Volcanic lever action carbine with a 16 1/2-inch barrel was manufactured by the New Haven Arms Company. This carbine has the rarely encountered plain receiver. The carbine is fitted with a German silver front sight blade and a professionally made replacement rear sight (loose). The top barrel flat is roll-stamped: "NEW HAVEN CONN. PATENT FEB. 14.1854" in one line (faint). The distinctive brass receiver has circular cut-outs on either end of the ejection port, and the number "18" is stamped in large font on the underside near the cartridge elevator. The straight grain walnut stock has a crescent buttplate. The receiver and buttplate are natural brass. The matching serial number appears on the left side of the lower tang, one of the upper tang screws, the lower tang screw, buttstock under the buttplate tang, both buttplate screws and buttplate. The New Haven Arms Company manufactured an estimated 1,000 lever action carbines with 16, 21 and 25 inch barrels.