Manufactured in 1941 and shipped to Springfield Armory on June 28, 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. Blade and flat top notch sights, with the Rampant Colt bisected address and patents on the matching numbered slide, "R.S." stamped frame (left side and top) with "X/VP" and "69" marked trigger guard, short milled trigger, wide hammer, checkered arched mainspring housing, correct checkered Colt grips (hollow backs with reinforced screw holes), full blue commercial magazine with "COLT/45 AUTO" on the base, and a "COLT 45 AUTO" barrel with a small "G" ahead of the lug.