Manufactured in 1934. Blade front and adjustable notch rear sights, the two-line address and patent dates on the left side of the slide, the Rampant Colt ahead of the serrations, and the Colt Ace logo and caliber markings on the right. The frame is marked "12" on the right side of the trigger guard, "S/VP" on the left and fitted with a short milled trigger, wide checkered hammer, checkered arched mainspring housing and a set of fully checkered grips.