Porcelain door knob handles

These white porcelain door handles probably date from the first half of the 20th century, maybe before. They are not strictly identical, the shape of the handle is slightly different, the white color very slightly too, as well as the metal ring. One has a patinated metal ring (bronze brass?), on the other it is more golden, less patinated because it was covered with white paint that I removed. We note deformations on the holes of these rings. Both have various stains and marks on both the metal ring and the porcelain handle (and small abrasions on the porcelain but no chips). You will need to find the rod for reassembly on a door. The handles measure 6.5 cm in length, 4 cm in width, 5 cm in depth (including the ring).