For those who know, this wheel gun needs no introduction: -Diamondback Serial Numbers: 1976 N01001-N01800 -Unfired with only the faintest turn line on the cylinder. -No wear on the deep blue anywhere. Perfect bluing. Stocks in original condition. $1200 OBO Check out the photo album: http://picasaweb.google.com/ShawnMichaelKelly/Diamondback?feat=directlink For those who don't I'll let Chuck Hawks give you the info: Colt introduced the Diamondback double action revolver in 1966. It was intended to be a deluxe model and included special features such as a target hammer, ventilated rib, fully adjustable target quality sights, and full length barrel underlug. Like its Colt half-brothers the Detective Special and Police Positive, also built on the Colt "D" frame, it was a 6-shot revolver with a swing out cylinder and a Positive Lock action. .38 Special +P loads are safe for use in all Diamondback .38 Special revolvers. The top of the barrel wears a ventilated rib, and there is a full length lug beneath, as per the Colt Python. The Diamondback is, visually, a miniature Python. The top strap of the Diamondback's frame is a flat top target type. The hammer has a wide, serrated, spur and the trigger is a grooved target type. Diamondbacks came with a fully adjustable rear sight, usually mated with a ramp front sight. The grips provided on guns with 4 and 6 inch barrels are checkered walnut target type. Its internal lockwork is of the same basic design as the Python and uses the traditional Colt "V" shaped mainspring.