Yea it looks like a 3, maybe a B or a Z? I know in German the Z can look a bit like a 3, but no idea if in Italian it is used the same way. Maybe someone out there knows a bit more Italian or has come across the label. Also have no idea what the "K" is, the gallery logo?
... Have you come across any plain paper makers labels with just a product number ? or original price on them ? maybe with a company name written in pen ?
Hi Peter, Here's some of them