Jindrich, thank you so much again, your help is invaluable.
I'm really starting to like the modernist feel of this period of Czech glass, and I've already ordered a few more.
PS - Could you contact me about how to order the CD on Vizner (and have you any more CDs I could buy)? My czech isn't good enough I'm afraid. This doesn't belong in the thread, but I noticed I can't email you directly.