Loetz Chine lamp shade in rosa?

Here's a Loetz Chine lamp shade, I think in rosa? The glass color seems darker than pink and darker in hand than the pics indicate. It is large, with a 4" fitter rim, 8" diameter by 5" tall. The glass has a matt iridescence showing gold, purple and blue colors between each colorless thread. The shade has 8 ruffles and has a ground fitter edge. Underneath the threading is a vertical ribbing that can be felt on the inside of the shade.