Produced in 1915, the fourth year of commercial production. Blade front and flat top "U" notch rear sights, with the two line, two block address and patent markings on the left side of the slide, Rampant Colt behind the serrations and "COLT AUTOMATIC/ CALIBRE 45" on the right side of the slide. "GOVERNMENT MODEL" over the serial number on the right side of the frame and "VP" and "R" on the left side of the trigger guard. Equipped with a wide checkered hammer, smooth long trigger, short beavertail grip safety, checkered slide catch, thumb safety and magazine release and smooth flat mainspring housing with a lanyard ring on the butt. Checkered grips with diamond patterns around the screw and unmarked two-tone magazine.