Just google CREARE and you'll find the info. There are several locations, but the glass is in the industrial estate in Catania. When I found this bottle it had the most gddmnwfl pewter misery glued to it - the combination of priceless and age old techniques they are on about.
Creare Art Collection S.R.L. 41, Via Pilata Mezzocampo, Misterbianco, CT 95045 Italia - no website as far as I can see.