I bought this lovely iridescent paperweight at Daylesford, VIC, Australia recently. The base stamp is very clear but I have not been able to find a maker. It struck me that it is a very similar iridescence to a Pheonician Perfume I own. I therefore have tried without success to find out if Phoenician Glassblowers have used a stamp at some period.
I have included pictures of both pieces.
Ross