At my maternal grandparents' house last year, I walked into the basement and happened to find this lamp, in a very dirty state, on a shelf.

These Westinghouse ColorTone lamps don't seem to be super common, and I haven't been able to find much information regarding them.

I read these were made by decorative use, interestingly though, I wonder why this lamp isn't more blue- It is kind of a light blue when it is on.

If anyone has information regarding these, that would be great!