SN: S167067. Made around 1957, .44 Mag with a 6.5″ barrel. Original 5-screw pre-model 29 revolver with blue finish. The cylinder has an area of pitting, the rest of the metal is very good with light wear. The grips are later diamond checkered target style, not coke bottle. An attractive gun with an unfortunate blemish, but still a good 5-screw S&W revolver.