An Untouched Flintlock Cannon Barrelled Pistol by Parkes of London. With brass three-stage turn-off cannon barrel, stamped below with Birmingham proofs, foliate engraved brass frame signed London on a foliate scroll to the right and Parkes on a foliate scroll to the left, sliding trigger safety catch, slab-sided walnut butt, in completely untouched condition, the brass is almost black, finding guns in this condition these days is incredibly difficult. 

PARKES

John Gunmaker, Birmingham, 1766-88. Marked guns London. 

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

Dimensions:

Bore: 54 Bore 

Barrel Length: 1.75 Inches (4.45 cm)  

Overall Length: 7 Inches (17.78 cm)