I have seen one of these with a "murano" label. However, that was being sold in Germany and most others appear there. I did meet someone said he had a positive ID labelled piece, confirming a German factory origin, but didn't say who. I prefer this (partial) explanation, as murano labels do get put on pieces in Italy to be sold to tourists and also by unscrupulous ebay sellers occasionally. So, for once, it seems a label can deceive and I prefer the German explanation now.... hopefully another labelled one will appear soon....
Robert (bOBA)