Manufactured from 1874-1879 with standard features, the two-line address on top of the barrel, "COLT NEW 41" in an etched panel on the left, and British proofs on the bottom of the barrel and on the cylinder. The caliber marking is also on the left of the frame, and the matching serial number is on the left of the grip frame under the grip and partially ("600") on the rear face of the cylinder. The loading gate and right of the grip frame are numbered "855", and the bottom of the left grip panel is stamped "1855". Includes a hardwood case with Colt London Agency interior label, cleaning rod, and four .41 CF cartridges.

Exceptionally fine, retains 85% plus of the original blue and 90% of vivid casehardened finishes with the balance having thinned to mostly a smooth brown-grey patina. The grips are very fine with some light handling marks and the above-mentioned stamp on the butt of the left panel. Mechanically excellent. The case is very fine with some scattered light handling/storage marks.