Hi, I'm trying to figure out where I could order a replacement shade for the light fixture shown. As you can see, the existing shade is broken in several places, and is quite faded.

The house was built in roughly 1958, and I think this fixture is likely the original. At a minimum, the fixture has been here since 1972, when we moved in.

The fixture itself literally doesn't have any identifying markings on it, which makes locating a replacement shade rather challenging.

If you recognize this fixture, and or you have leads on where I might buy a replacement shade for the fixture, that would be helpful.

Thanks.