In great condition. I'm not sure if it was used or not, but if it was used it was very gently. I believe it might be from the 1960s based on some research. Glass is in excellent condition. Has a beautiful bubble beaded texture. Has a metal bottom part where the metal has sign of age. Not really sure how its supposed to be installed, could be screwed onto an existing wall or lamp base but the bottom of the glass has ridges and this metal thing goes at the bottom and can be adjusted by loosening/tightening the screws.

It is about 5 3/4" tall
Bottom is 3 1/8" wide and the actual opening is 2 1/2"