Manufactured circa 1948-1951. Five screw model with pinned barrel and round blade front sight with square notch rear sight. Left side of frame marked "AF. 150" (left in the white and significance unknown). Standard S&W barrel and frame markings. Blue finish with casehardened hammer and trigger. Fitted with checkered walnut grips with diamond pattern around the screw and silver S&W medallions. The revolver comes with a bill of sale dated 6-14-88 listing 33 "38 CALIBER REVOLVERS, Smith & Wesson Model 10, 4" Barrel, blue steel, Year 1951 and 1953. Used." sold to Southeastern Public Safety Equipment Co., Lockheed owned from a "scrap sale" and picked up on June 15, 1988. Comes with a correct gold two piece box numbered to another gun and added masking tape on one end marked "AF 150".