A quick check in Ivo's book (Miller's Glass Fact File)says that the factory is in Nuutajarvi and operated by Arabia (50's to 90's).
If you like Finnish glass, you might also like this auction site, I'm sure there's a search facility somewhere.
http://www.huuto.net/fi/cats/antigdesign.php3I think though that in order to register to be able to bid you need to have a finnish bank account - or at least I've never quite succeeded - but at least the pictures are nice !