Quite different in appearance to 2nd Model. Features square butt and smooth walnut grips, with inlaid S&W medallions. Barrel lengths remained the same, with addition of 2.25" and 6" variation. Under barrel cylinder lockup was not changed, nor caliber and finishes. Approximately 12,200 manufactured between 1910 and 1921; serial number range 13951 to 26154. Note: Add 50% premium for 2.25" and 6" barrel lengths.