Pair of vintage milk glass reflector shades for Rembrandt or Stiffel type lamps. These are almost identical, size is 1/8" different at the fitters, I think this was within specs as these came off a pair of matching lamps! Neither is marked as far as I could see.
Measurements are 5 3/4" deep, 7 7/8" across the open rims, fitters are 2 1/8" and 2 1/4". Fitter rims have some roughness, please see photos.
It's 10" across the wide rim, about 5 1/2" tall. The fitter is 2 3/4" across.
This is in excellent condition without chips or cracks. It doesn't appear to be marked at all that we could see.