Manufactured in 1945, the left side of the slide is marked with the standard two-line address and patent dates, followed by the Rampant Colt, and the right side has the standard Service Model Ace and caliber markings. The right side of the frame has the serial number, U.S. property marking, "RIA", and "90" on the trigger guard. The left side of the frame has a "J.S.B." inspection mark and "4/VP" on the trigger guard. The left grip is marked "6" in white paint. It is fitted with blade front and adjustable notch rear sights, short stamped trigger, serrated arched mainspring housing, narrow checkered hammer, long grip safety, checkered Keyes Fiber grips, and a full blue magazine with Colt Service Model Ace markings on the base. Includes a boxed floating chamber Colt .22 Conversion Unit which contains slide, barrel, floating chamber, recoil spring and guide, slide release, and magazine.

Very fine, retains 90% plus of the arsenal refurbished parkerized finish with the balance having thinned to mostly a smooth grey patina, primarily on edges, and some scattered light handling marks. The grips are also very fine with some scattered light blemishes in the otherwise crisp checkering. Mechanically excellent. The conversion unit is very fine with some light wear and handling marks and the box is good with one end panel of the lid absent and mild wear.