vintage glass lampshade, bowl shaped heavy crystal shade, clear & sparkling

Heavy crystal lamp shade with a pattern of laurel and lined ribs on a classic bowl shape. This is a vintage piece, not marked or signed that we could see.

It measures 8 1/2" overall diameter, 8" across the fitter rim. It's 6 1/2" deep, with a center hole for mounting.

This doesn't look as though it was ever used - it's in excellent condition, clear and sparkling.