This unusual "clock gun" is comprised of 12 pinfire chambered barrels, a wooden block bored with 12 guide tubes that, when readied, held 12 weights suspended by thread and a clock mechanism that is attached to the wooden block. At every hour the clock mechanism cut a thread, resulting in the release of a weight that detonated a blank cartridge waiting below. The metal bar behind the barrels would have kept the cartridges in place. All housed in a metal case, which has "J. HALL'S/PATENT/CLOCK GUN/STATION ROAD WORKS/WIGTON, CUMBERLAND" marked on the front and "DANGER" on the back. A paper instructions label is pasted to the interior of the lid. Included but separate is the cluster of 12 barrels, 12 weights, and two iron legs.