A total of 1,000 Double Diamond sets were produced in 1986 only. One of the most handsome sets ever produced by Colt, and due to the Python, one of the most desirable. Gun (A) is a Colt Officer's Model is factory nickel plated with Colt "Double Diamond" stamp on left side of slide, smooth wood grips with "150th" silver medallion. Appears unfired with a couple minute storage marks. Gun (B) is a full factory nickel Python, unfired. Left side of barrel is stamped "Double Diamond" with "Colt 150" for the 150th anniversary of Colt. Features full vent rib and lug, red ramp front sight, target rear sight, wide target hammer, grooved trigger, six shot, double action, smooth wood grips with special Colt silver medallion. Revolver has light drag line only. No cylinder burn. Guns have matching numbers. Comes in a specially made wood and glass felt lined French fitted display case with two keys and special emblem. No cardboard box is included. Serial Number-(A) 0311DD, (B) DD0311; Manufacturer-Colt; Model-(A) 1911 Officers, (B) Double Action; Caliber-(A) .45 ACP, (B) .357 Magnum; Barrel Length-(A) 3 - 1/2", (B) 6"; FFL Status-Modern;