Isaac Jenings' shotgun, designed by him in 1821. Unlike the single-shot guns of those times, it could fire 12 times in a row - it had a dozen independent powder chambers.
12 Jennings Charging Gun, Isaac Jennings' prototype is a 12-round silicon rifle with an engraved brass frame engraved with the serial number “No. 1”on the top flat surface of the barrel. This model is based on the earlier breech-loader single-shot Jennings model, which has been in production since 1818, but includes many new features unique to this weapon.
Decorative leaf scrolls and cornucopia are engraved on the frame, and the frame ends with a simple walnut-shaped bar. The stock is made of yellow copper and originally contained an oval stock, also in the shape of a walnut. On the inner plane of the butt, the capital letters “J. B. B. Vignie”.
Note: It is assumed that the frame and butt configuration was only used in Isaac Jennings patented firearms, which are rare in American weapon collections.
After the patent was published on September 22, 1821, Jennings and his partner named Ruben Ellis studied the possibility of supplying the US government with multiple-shot rifles. Their modified weapons were of a conventional shape using a traditional wooden stock. Five hundred twenty of these larger-caliber rifles were manufactured for the government by the entrepreneurs R. Johnson and J. Johnson of Middletown, Connecticut in 1829. Once manufactured, they were inspected by federal inspectors and then shipped to the New York State militia, possibly for field trials. Four and ten-shot variants are known and they were officially named - the Ellis-Jennings multiple-shot silicon gun.