Here's another piece I think is not really Murano, even though it has a label.
I'm used to these from American Studios, dichroic fumed from Eikholt and others, colored, (like this) from a different studio, (name escapes me).
I've also seen a good number in these colors from China.
On the other hand I've seen a few identified as Murano on EBAY, though of course an EBAY Murano attribution is worth as much as the New York street seller selling Rolex watches for $200.00.