80s or 90s vintage art glass lamp shade, probably made in China, not Italian art glass. We like the great mod style on this one anyway!
It's clear glass with applied white glass 'string' giving it texture and a little color. Condition is very good, without chips or cracks.
Measures 6" deep including the fitter, 2 1/4" across the outside edge of the fitter rim. It's about 4 1/2" overall diameter, 3 1/4" across the inside edge of the opening.