Given the Polish penchant for using peoples names for the glass factories, I think you may need to be looking for a company, probably known as HSK Beverly (Huta Szkla Krysztalowego). I've had a look round for you already, but couldn't find much. It may be that the works has been pushed into a larger glass conglomerate, but many do not seem to list member factories.
Minex, the Polish equivalent of Glassexport still exists, and still operates in the field of glass exportation.
If you want the address, e-mail me and I'll send it to you.