Socket length 3.09 inches barrel opening is.89 inch opening at the rear and .85 at the muzzle. Slides on 1.9 inches past the sight. L cut mortise with a number 1 stamped in the front, hairline at the rear. A very thin bridge is present - now worn through. Shank is thick (.6) and 1.74 long. The face of the 14.25 inch blade is flat, having no fuller. The back is fluted. Great brown patina, no pitting.