This example seems to have been modified with a screw in base to allow it to be used with a metal candle holder. The candle holder shown is used only to show how the completed candle holder would display, it is not an original application. The metal part of this candle holder was most likely made by Farber Bros or a similar company.
Identification provided by Rich Stoer, co author of the 3 books called "The Glass Candlestick Book, Volumes 1,2, and 3"
