Manufactured 1960-1964 with standard markings and features including "US" on the left of the frame.

Excellent, retains 95% plus original blue finish with some scattered light edge wear, light muzzle wear, and some scattered light handling marks. The grips have a few light handling marks and crisp checkering. Mechanically excellent.

Manufactured 1954-1957. Standard markings and features including "U.S." marking on the frame. Upgraded grips, non-standard barrel length and front sight.

Very fine retains 85% original blue finish thinning to a grey patina mainly on the frame and back strap with some light edge wear and scattered handling marks. The refinished replacement grips are fine with a few light handling marks and crisp checkering. Mechanically excellent.