Thanks for the help. I'll probably have to sell this one because my cabinet is absolutely full, but it is a lovely piece of glass. I can't get onto facebook at the moment, or I'd be busy there.
There was one other piece that came with it that I haven't identified which is unsigned, so if anyone can place this one, please let me know. It came in a group with the Caithness I bought it for, some knockoffs, the Selkirk, and one Murano which went to a friend, so it could be anything.