Marked sterling, 1961, Leonore Doskow this is a vintage mid century modern industrialist screw circle pin. Signed Leonore Doskow. Solid sterling silver. No dents, dings, gauges, tears or deep scratches. Good working clasp. Some surface age wear which can be jeweler polished. Size is 1 3/16″ wide in diameter. The circle rim has strong mid century modernist convex design. The edge rim measures 5/16″ wide. Lovely industrialist pin for your vintage jewelry collection.