Wouldn't say that Murano was my best subject, bit of a minefield. I'd suggest, using a magnifying glass, if you can identify each letter then type 'em in to Google and see if anything comes up. Most things that I've bought in the past as Murano (according to the sellers) are made in Naples. Especially the items with the various Murano stickers on them. Mind you, the fact that this item is signed can only be a good thing I'd have thought. And it does have a bit of a Venetian look about it. Sorry I can't be of more help...