Maybe it's just me, but I thought this looked more like Chalet glass.
To pick up on Davids point, on the occasions when I've been selling pieces by a specific manufacturer say Venini, or Seguso I've had people say don't you have any Murano, or doesn't it look like Murano. Many times it's easier to refer to something as being Murano when dealing with the general public. The other problem with using specific factories names if the piece is not well documented is that you will almost certainly be told you are wrong by someone. Whilst there are some superb books on the more notable Murano houses and artists, many as yet remain quite veiled in details of their output.
Then when one takes all the generic pieces into account, the more notable studios were often reluctant to put their names to such pieces, although historically many were made as part of the education process or for orders by specific stores.
I think the Murano field although my first love, is quite possibly one of the biggest minefields in glass collecting and certainly prompts more discussion that any other.