This revolver was manufactured at Colt's short-lived London armory in 1855 and was issued to Company C (First Wentworth Troop, 53 men) of the Upper Canada Militia. An estimated total of 556 Colt Model 1851 revolvers were issued to troops of Upper Canada (see page 185 of Swayze's "51 Colt Navies" for more details). The Canadian militia were reorganized by the Militia Acts of 1846 and 1855. It features a brass cone front sight, "-ADDRESS COL: COLT LONDON.-" on top of the barrel, London proof and view marks, "COLTS/PATENT" on the left side of the frame, the standard naval battle roll-scene on the cylinder, small "C" on the left side of the trigger guard, the rounded head screws used on the London Navy revolvers, "U_C/C/11" (Upper Canada Company C Trooper 11) stamped on the left side of the varnished walnut grip, and all matching serial numbers.

Fine with 40% original case colors remaining, 20% of the original blue, contained mostly in the protected areas, mostly smooth gray or brown patina on the balance, minor pitting, general mild scrapes and marks, absent wedge spring and one post at the front of the frame, and general mild wear. The grip is very fine and has most of the original varnish remaining, distinct markings, light edge wear, and small dings and scratches. Mechanically excellent. Overall, this is a solid original example of a London made Colt Model 1851 Navy that was shipped across the Atlantic for use by the Upper Canada Militia in the mid-19th century.