Manufactured in 1970 as 1 of about 1,000 produced as part of the transition to the Series 70's. The serial number is marked on the right side of the frame over "BB", the one line address appears on the right side of the slide, the barrel is marked "COLT .45 AUTO" followed by "BB" and the left side of the slide is marked "GOVERNMENT / *MODEL*" "COLT" AUTOMATIC / CALIBER .45" followed by the Rampant Colt. The left side of the trigger guard is marked with the number "3" and the Colt Triangle "VP" proof and the right side is marked with the letter "Z". The flat surfaces are high polished Colt blue while the remainder is matte finished. Fixed low profile sights, serrated hammer, slide stop, thumb safety, magazine release and trigger, detachable 7 round magazine, serrated arched mainspring housing. Blue magazine marked "COLT / .45 AUTO." and fitted with brown checkered plastic grips with Rampant Colt imprints.

Excellent. The pistol retains 98% original finish with some minor wear on the muzzle end of the slide, a few light scuffs on the front strap and overall some light surface scratches and light handling marks. The grips are also excellent. All markings remain crisp and clear. The action is excellent. An exceptionally nice and scarce "BB" marked transitional Government Model pistol.