This is a set of 4 heavy cast bronze round door knobs mated to a set of reading hardware (reading, pa) antique door plates. These beautiful high-quality 2-1/4 door knobs are in beautiful condition and each knob/plate weight over 1/2 lb.The door knobs have a super gorgeous flaky natural patina. The wrought steel door plates measure 7-1/2" x 2-5/8" and have a lightly distressed black finish that reveals the high points of the design details. Price is for the set of 4 of these awesome pieces of old american craftsmanship, perfect for a set of double or french doors. What is a dummy knob a dummy knob is for pulling, not for turning. A dummy knob is a face mount knob that acts as a way to open/close a door, pull/push or side to side. Ideal applications are on man doors, cabinet doors, barn doors or french doors. Any door that has an alternate method of latching, but needs a cool piece of original antique hardware to pull it open and closed. Other applications include use as wall towel hooks, curtain tiebacks or just wall art my antique dummy door knobs are all actual antique, period specific door knobs that have been mated to a door plate or rosette (the round door plates). Mounting to the surface is via screws through the door plate screw holes (which you supply). Custom knobs sets or components: if you would like a custom set or multiples, or maybe just parts and pieces of what you see, please feel free to drop us a note and let us know your questions are, or what you might need. Information on french door installation techniques.