A Small Percussion Turn Over Pistol by Lang of London. With round turn-off barrels, cut at the muzzle for a key, with single border line engraving at the muzzle and double line at the breech, border engraved box-lock action, stamped at the breech with London proofs and ‘LONDON’ and ‘PATENT’, the lock profusely engraved with squares of foliage and signed within a square, ‘LANG HAYMARKET’, profusely engraved dolphin hammer and sliding safety catch, chequered walnut butt with vacant silver escutcheon and engraved silver butt plate.

LANG
Joseph Gunmaker (opened as Gun & Pistol Repository from Wilson’s Warehouse, Vigo Lane) 7 Haymarket, 1925-52 (Shooting Gallery adjoining from 1827) 22 Cockspur St., Charing Cross, 1853-74. Became Joseph Lang & Sons, eventually amalgamating with Stephen Grant, Exhibited 4 and 6 barrel revolvers, Great Exhibition, 1851. Popularised the pin-fire breechloader. Died 1869. 

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

Dimensions:
Bore: 120 Bore
Barrel Length: 1.25 Inches (3.17 cm)
Overall Length: 5 Inches (12.70 cm)