A London Colt 1849 Model Pocket Revolver, No. 50 for 1853. With octagonal sighted barrel with London address, cylinder with roll engraved stagecoach hold-up scene, brass trigger guard and back-strap, figured rounded grips, and matching serial numbers throughout, London proof marks. 

Note:
Early production range serial number (below #500) London revolvers were marked with the New York City address on the barrel as opposed to the more commonly seen London address.

Dimensions:

Bore: .31 Calibre

Barrel Length: 5 Inches (12.70 cm)

Overall Length: 9.5 Inches (24.13 cm)