Manufactured in 1945. Blade front and adjustable notch rear sights, with the "ACE" diamond and Service Model nomenclature on the right side of the slide and the address, patents and Rampant Colt markings on the left side. "JSB" inspected frame, with "K/VP" and "90" on the trigger guard. Short stamped trigger, arched serrated mainspring housing, long grip safety, reinforced grip panels (Colt left, Keyes Fiber right), and a Service Model full blue magazine.

Very fine, with 80% of the original parkerized finish, showing bright edge wear, a gray patina on the grip frame, and mild handling marks overall. A number of dings and scratches are present around the slide stop, and a thin scratch is on the left rear of the slide just above the thumb safety. The grips are also very fine, with some dents and scuffs. Mechanically excellent.