Offered for sale is ONE (1) vintage used doorknob made of 'uranium glass' that fluoresces under ultraviolet light. I have several of these, but as does not allow multiple listings for this item, I am forced to offer them one at a time. 
 
This knob is designated "C", and is the knob you will receive when ordered. 
 
Each doorknob has been inspected and cleaned; they do show signs of use, e.g., scratches, minor chips and other blemishes, but they are useable and from a distance appear quite beautiful. Some have interesting air bubble inclusions in the glass but my camera cannot show them. 
 
Please carefully look at the photos if you are interested, and I can provide other photos of each doorknob if requested.