Made in 1945. Blade front and adjustable rear sights, with the two line address and patent markings on the left side of the slide and "COLT SERVICE/ MODEL <ACE> .22 LONG/ RIFLE" on the right. "JSB" (John S. Begley) inspected frame, with "UNITED STATES PROPERTY" above the serial number. Checkered thin hammer, stamped trigger and thumb safety, long grip safety, serrated slide catch and arched mainspring housing. With reinforced Coltwood grips and full blue Service Model magazine.

Excellent, with 95% plus original parkerized finish, showing mild edge wear and scattered handling marks. Grips are excellent, with some mild dings. Mechanically excellent. These U.S. Service Model Ace Colt Autos are seldom encountered in this excellent original condition!