Hello Roy - when you refer to Salviati are you speaking of his London production which produced opalescent art and Venetian studio glass c. 1860 - 1880, or glass from the Venice area ?? I know almost nothing about this stuff other than what I read in books, but the situation looks to be complicated insofar as Sowerby also produced similar pieces around the same time - but glass from neither output appears to look as OTT as your piece here, and much was plain opalescent in appearance. I could be wrong, but none of the pieces from this C19 period look to have gold or silver leaf inclusions.
My money is on this one being more recent.