This pair of crystal knobs are different than most any of us have seen! At first appearance, we think they are the typical octagon shaped knob with the star in the middle. But on closer examination and “feel,” we realize that each knob is concaved or sunken in the middle. The cup is 1 1/2 inches wide and approximately 1/4 inch deep.
The pair of knobs are on a threaded spindle and have brass necks. The crystal knobs measure 2 1/4 inches across the top and 1 1/4 inches deep. The set screws are in place and workable.
This is an exceptional pair, and probably came from an affluent household.