A Large 22-Bore Flintlock Box-Lock Pistol by Harris, Mid 18th Century. With turn-off cannon barrels, the breech engraved with dog-toothing, border engraved raised ovoidal pan, border engraved rounded action signed beneath a foliate spray and a cannon on ones side and a spray of foliage on the other, sliding trigger guard safety engraved on the bow with a engraved oval, swelling figured rounded butt (small split to one side) inlaid with silver wire scrollwork, and highly unusual foliate butt cap. London proof marks and barrel smiths mark. 

HARRIS

'Foreign' gunmaker allowed to prove guns by Gunmakers Co. 1726-30.

Howard L. Blackmore (1986) Gunmakers Of London, 1350-1850. George Shumway Publisher. USA. 

Dimensions:

Bore: 22-Bore

Barrel Length: 5.5 inches (14 cm)

Overall Length: 12 Inches (30.5 cm)