Manufactured in 1882. The barrel has the scarce "COLT'S PT. F.A. MFG Co HARTFORD CT. U.S.A. DEPOT 14 PALL MALL LONDON" address and is chambered in .455 Eley. The trigger guard is marked "455 CAL/E." Only 1,147 Model 1878s were manufactured in .455 Eley with a 5 1/2 inch barrel and blue finish per Don Wilkerson in "Colt's Double-Action Revolver" (pg. 359). London proofs are stamped on the underside of the barrel and behind each cylinder flute. The cylinder is numbered to the gun. The period case has a Colt London paper label on the interior of the lid and contains an empty cartridge block, "L" shaped screwdriver, James Dixon & Sons oiler, combination tool, case key, and cleaning rod

Very fine, retaining 80% bright original high polish blue finish with a smooth brown patina on the balance and a scuff on the top strap. The grips are excellent with overall crisp checkering. Mechanically excellent. The case is fine with minor handling/storage marks, some typical high spot wear on the lining and a clear paper label.