Manufactured in 1941, the Robert Sears inspected Colts marked the transition point from Colt's high polish blue to the parkerization treatment that would become the standard for the rest of the war, with this example having received the parkerized finish. The included factory letter confirms the current configuration, with the finish correctly listed as "blue" and grips not listed, as well as shipment to Springfield Armory on 7 November 1941. The left side of the matching numbered slide has the two-line, two-block, patent dates and address with the Rampant Colt between, and the right side of the slide is correctly devoid of markings. The right side of the frame has the U.S. property marking, serial number, and model designation, with "60" on the trigger guard. The left side of the frame has the boxed "R.S." Robert Sears inspection mark, "P" proof, and "4" over "VP" proof on the trigger guard. The top of the slide also has a "P" proof. The full blue barrel is marked "P" on the left of the lug and "COLT 45 AUTO" on the lower left. Fitted with blade and notch sights, wide checkered hammer, short checkered trigger, long grip safety, replacement arched checkered mainspring housing with a lanyard loop, an unmarked two-tone magazine, and correct non-reinforced checkered grips.