A Percussion Officers Pistol by Charles Lancaster of London. With browned Damascus twist sighted barrel singed in full along the top flat, recessed breech engraved with foliage, foliate engraved tang fitted with back-sight, signed border engraved lock decorated with scrollwork, hammer decorated en suite, figured full-stock cut with a band of chequering at the grip with rounded butt with engraved ovoid pommel and horn fore-end cap, border engraved trigger guard decorator with a scale shell and foliage on the bow, trigger plate with pineapple shaped finial, vacant silver escutcheon and stirrup ramrod. 

Notes:

Charles Lancaster, 151 New Bond St., London, No. 3291 for 1845. 

LANCASTER 

Charles Best Gun Barrel Maker, 10 Craven Buildings, Drury Lane, 1811-18; coach & Horse Yard, Great Titchfield Street, 1822-4; 2 Thomas Place, Hampstead Road (workshop) 26 York Street, Gloucester Place (residence) 151 New Bond Street (Shop). 1826-9 Gunmaker, 151 New Bond Street, 1829-47. Barrel maker to Joseph Manton. Died 1847.

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

Dimensions:

Bore: 13 Bore

Barrel Length: 9 Inches (22.86 cm)

Overall Length: 15 Inches (38.10 cm)