Manufactured c. 1915-1921. "Crown/Gothic letter" and "crown/crown/U" proofed, "NS" marked hammer. Matching serial numbers on small parts including both grips.

Very good with traces of original finish, with a few softened markings, edge wear/high point silvering, limited minor pitting, light freckling, brown patina, and scattered handling marks. The grips are also very good as lightly sanded and re-oiled, with some light scratches. Mechanically excellent.