Manufactured between 1962 and 1970. Adjustable blade front and fixed notch rear sights, the MBAssociates model and caliber markings on the left side below the barrel, the patent on the reverse, nickel small parts and a pair of smooth grips. With an matching numbered (likely retailer numbered) factory box, and an October 25, 1992 dated sales receipt,

Excellent overall with 99% original black anodized finish and some light handling marks. Mechanically excellent. Box is good with corner and edge wear, and age discoloration.