British Queen Anne Military Issue Brass Barrel Blunderbuss by Halfhide of London dated 1710 Category_Martini-Henry Bayonets a square central hole that

a square central hole that allows the tool to be used as a wrench for turning the cleaning/charging rod while cleaning the bore or drawing a charge

The inclusion of a bayonet lug allowed for a more conventional bayonet

and standard ramrod

There were other differences

a pentagon whose points lie on an imaginary circle 2 1/8 inches (5

British Queen Anne Military Issue Brass Barrel Blunderbuss by Halfhide of London dated 1710 Category_Martini-Henry Bayonets a square central hole thatOriginal Item: One of a kind. Exceedingly rare, this is a Queen Anne marked brass barreled military blunderbuss. The flintlock is signed HALFHIDE 10 across the tail and in the lock's center there is a CROWN over AR (for Anne Regina). The Flint cock has an interesting dog catch to the lower edge that only engages at half cock so, in effect, this weapon is fitted with an early primitive version of a safety. The 17 inch bell mouthed brass barrel is