John Blanckle (also other spellings) is recorded as an apprentice of Thomas Towle that was turned over to Thomas Cox in 1669, free of the London Gunmakers Co. in 1677, a gunmaker "at the Halfmoon and Cross-pistols in the Minories" in 1687 and a contractor to the British Ordnance Department in 1682-1700 and the Royal Africa Company in 1698. He died in 1700. His son Samuel was a gunmaker in the early to mid 18th century (see "Gunmakers of London, 1350-1850" by Blackmore). The bore above is estimated, and the muzzle flares out to 1 3/4 inches at the muzzle. The barrel is marked "*/IB" over London proof and view marks on the left at the breech. The lock is marked "I/Blanckley" in script below the non-bridled pan and has some light engraving. The furniture is iron. It has sling swivel near the forend tip and a sling stud on the bottom of the butt with a portion of a leather sling. One of the two pairs of filled holes in the forend may have been where a swivel for mounting the gun to a boat was previously located. An inverted "V" style marking (Eastern Arabic 8?) and "27" rack number are marked on the buttplate.