vintage hobnail glass lampshade, amber glass shade student lamp or hanging light replacement

Hobnail pattern vintage amber glass lamp shade - this is colored glass, not just a flashed on color over clear glass. Looks so pretty with light behind it.

It measures 6 3/4" tall, about 7 3/4" diameter (straight across the fattest part of the shade). It's 6 3/4" across the fitter rim. There&'s a little roughness to the fitter edge left from manufacture, no chips or cracks.