Usual Murano Art Glass Colors (Bowl)

I think this is an usual color combo for Murano. It is Blue with a Brown outer color. Swirls of Aventurine are in the inside of the Bowl. Polished bottom with good wear. Unsure of maker, but maybe Fratelli Toso. Probably from around the 1950's//1960's range.

Any other ideas on Maker, or the color combo here?

(( Sorry for poor photos but these are old photos taken with a cell phone back in the day......LOL ))

Thanks