The Model 66 Combat magnum stainless is a six shot, double action revolver built on the K target frame with three screws. Features the pin barrel with recessed chambers. The model 66 was introduced in 1970. It was produced until 1976. 1977 saw the introduction of the Model 66-1. It is interesting to note that the 6" barrel was not a catalog offering until 1978. According to Supica and Nahas The Rhode Island State Police ordered these revolvers with the special 6" barrel. This revolver is stamped "R.I.S.P 136" on left side of frame. Revolver also came with a special order lanyard loop. The silver medallion checkered walnut target grips had a special cut made into the bottom to allow for the lanyard stud and both grips are numbered to the gun in black marker, 2463. "C16" is stamped inside grip frame and cylinder yolk. Standard features include target adjustable rear sight, red ramp front sight, wide spur, checkered stainless hammer, and serrated stainless trigger. The book does not indicate total production number or exact date, but was made sometime between 1970-1976. As to condition cylinder has a light drag line, cylinder face shows no burn, grips have the silver inner disk and are in excellent condition with minor varnish loss. Indexes and locks up perfectly, both single and double action. Strong, near mint rifled bore. Fairly scarce revolver with two special order features. Collecting examples of each Smith & Wesson police marked revolver would be quite challenging. Serial Number-9K72463; Manufacturer-S&W; Model-66; Caliber-.357 magnum; Barrel Length-6"; FFL Status-Modern;