Decorative Square Glass Bowl Clear Optic Textured Elliptical Spiral Swirl 8 inch

Decorative Square Glass Bowl Clear Optic Textured Elliptical Spiral Swirl 8 inch
I don't know the maker of this beautiful bowl, I've been researching and Selezione IVV Italian Art Glass seems the closest match but I have no way to know for sure.  What I do know is that I barely made it out of the estate sale where I found it because every time I set it down for a moment people kept commenting on how pretty it is, even the woman checking me out at the door.
The exterior is an alternated pattern of textured and smooth swirls and in under the light, the textured swirls appear to look silver.
The elliptical pattern gives it a unique look as opposed to the more common round spirals.
The condition is very good, if you run your finger over the inside lip you can feel but can't see some rough areas.  I don't know if there is a way to have it buffed, there are no cracks or breaks, just a couple of minutely rough areas that may have aways been there from the beginning. 
The  bowl is of a thick g