Seller: valliegirl1 (339) 100%, Location: Aquebogue, New York, Ships to: US, Item: 252656815992 Antique Ornate Door Knob and Back Plate Set - knob measures 2-3/8" in diameter. Plate measures 3-7/8" in diameter. Back of knob is marked 'M.C. Co. 912 GIM'. Back of plate also marked 'M.C. GIM 300 9'. The metal that this is made of has me a little puzzled. The back of the plate looks like brass but the front of the plate and knob looks like a grey zinc? with a gold gilded worn paint. Both pieces are in good condition with no cracks in the metal. Please review pictures and email me any questions.