Murano Art Glass Bowl ----- Heavy and Thick

Older Murano Art Glass Bowl in tangerine color Very, very heavy, thick bowl!! Very Good Wear on the bottom. The measurements for are:

~ 7.25 by 6.50 inches wide
~ 3.25 inches tall
~ RIM is just over 1 inch Thick!!
~ Weight is approx. 4.2 pounds
~ Does contain some manganese for a bit of a glow

This is one solid piece of glass.....possible Barbini piece?? You do not find a lot of orange Murano bowls. I did read somewhere that orange was a rather rare color done by them. Is this true??

Solid, very heavy (and well made) piece of Art Glass