Love this lamp shade but know nothing about it!

This is a lamp shade I just found at a swap meet, have no idea how old or where it came from. In fact i dont even know if it is a hanging lamp or for a reg standing floor lamp. It has no markings on the glass or the metal frame. Have been online looking and trying to find something similar but cant seem to find anything..so if anyone has any ideas I would love to hear them! It is beautiful and want to be able to show it off but until I know a little about it, it is just sitting in my spare bedroom..so if anyone can help I would really appreciate it!