please dont shout at me...

its highly likely im well off base
I was looking through Leslie Pina's book Italian Glass Century 20, and on page 28 it has 3 Alfredo Barbini pieces with very similar looking lobes, cased, with flat polished bases, although they dont appear to be angled like this (not easy to tell from the picture).
But on page 65 it has 3 more vases all lobed, chunky and cased, the third one has angled lobes (the angle is sharper than this one) all attributed to Seguso Vetri d'Arte, there is another one on page 66 with curved lobes.
And finally on page 96 there is 2 by Fratelli Toso with lobes although the lobes look the least like the ones on this vase they do seem to curve slightly towards the base.
michelle