These all porcelain sets are quite hard to find because the rosettes are frequently broken and cracked. These pieces originally had silver or nickel plating but the door knob shafts have worn almost completely to iron and a couple of the rosette collars have worn to brass. They are from around 1875 – 1885 and will impart a thoroughly charming addition to your historical restoration.
The porcelain rosettes are attached to the door via the cast iron interior rosette. Attach the interior rosette to the door, place the porcelain rosette over it and then screw the brass doorknob collar into the cast iron piece. The porcelain rosettes are not marred by screw holes for a clean and elegant look. A couple of the rosettes have chips that the metal collar does not completely cover. Face the chip down and it will be hidden from view by the doorknob. The screw-in portions on these sets have worn from age and don’t “bite” until completely tightened. One needs some help and I’ve taped it with Teflon plumbing tape which seems to work – although a pipe thread compound might work better. If it were me I’d just attach them to the door with caulking :o) The door knobs are free of any cracks or chips and have age spots which are expected with this old porcelain.
The above purchase price is for all 3 sets. I have more of these sets so if you need more than three, let me know. If you need a latch or lock go to
Mortise Locks Doorknobs: 2-1/4” diameter
Rosettes: 2-1/8”