Err, well, Cazza. It's a Murano paperweight. If you are asking which factory, the canes look to me like Fratelli Toso, and I guess it dates to the 1970s plus or minus 10 years. That said, I do not know whether other factories used Fratelli Toso canes, or if so which ones: I believe that some factories bought in their millefiori canes. The value is probably the same whichever factory made it.