Watch List notes:

English brass flintlock cannon firing lock, 1800-1820. 540 grams, 5-3/4" long. Rare iron hammer and frizzen flintlock firing mechanism in a brass body stamped "London" with "BO" and an arrow, the mark of the British Ordnance Department. Flintlocks like this were bolted to the vent area of the large Bloomfield iron service guns to enable instant firing capability for British cannons. Lock has been partially cleaned with areas of brown toning, numerous small scratches and dents with minor pitting to steel, and functional, tight springs. Purchased from Butterfield's Auction Arms and Armor sale in the 1980s. With photo-certificate.
($400-600)