Magic!
I did not see any in any of the Museums in Poland.

I would have noticed it, pounced on the name and reported back.
But, finding out about Polish glassmakers isn't easy.
Well done, M. You win the gmb crown.

This has been a mystery, just to me, for ~ 18 years.
Hadn't you better warn Frank to sit down before he reads it?
Shouldn't this really be a big announcement, in a thread all on its own?
