old white milk glass torchiere reflector, light diffuser lamp shade, vintage replacem

Vintage translucent white glass reflector shade, about 10" in diameter across the rim, 6" in height, 3" at the fitter. This isn't marked that I could see, though is probably a Rembrandt or Stiffel shade? It's in very good condition, some slight roughness to the rim, but no chips or cracks.