They function properly with double porcelain sockets and original factory wiring. They come from a super clean nonsmokers estate. The person had several of these that were used in a variety of desk settings at the estate. Please see photos as part of the description. If you have any questions or something to share feel free to message me.Please check out my other listings.. B e s t R eg a rd s.
J oh n n yC ry stal Est.