Russell and Erwin Des Pat D4, 166 Doorknob Oriental It is not marked at

It is not marked at all on the outside and I was unable to find this particular design in any of the old catalogues

This doorknob was originally bronze plated

Bronze decorative doorknob made by Norwalk

It has a 3 1/2" center to center distance for the mounting screws

An early example

Russell and Erwin Des Pat D4, 166 Doorknob Oriental It is not marked atRussell and Erwin Des Pat D4, 166 Doorknob Heavy cast iron decorative doorknob by Russell and Erwin. One of those early patented designs assigned to Metallic Compression Casting Company. Design Pat # D4, 116 by Joseph A. Ruff. patented in 1870 and seen in Russell and Erwin's 1871 Sup and 1875 catalogues. It features a concave center with a dense fourfold floral design. Decoration extends to the underside. The doorknob measures 2 1 4"diam. It fits