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.

Fine overall, markings slightly faded but clear, oxidation on the legs from apparent use, and overall clear instruction label. All components appear to be present.