It's beautiful and a top quality maker. My guess is one of the Bohemian companies
It is breathtaking to see the collections some of you guys have. I have seen the Pamela`s glass museum first, now your collection. Wow. Wonderful. That is what I call dedication. Talking just quantity, I can not discus the quality but I bet it is of the highest qual. standards, you can beet some of the good stamps collectors, hands down.
Thank you for your thoughts. I realise now that learning more than that, about this piece, will be quite a task. Although I did find another intriguing feature on this (I don`t even know how to call it - bowl, center piece, cup....). It is not completly unmarked. Thanks to flying free request for the base photo, I removed the metal stand from the glass, it was attached lightly, and discovered this under the brass on the base of the bowl. No.6. Or 9 or small spiral, or G...... I than looked the other the other covered edge, the under the top metal rim and there is the same mark. I guess it is internal workshop mark, perhaps to know which handles and base are the pair with the glass, but again, could it be the glass maker, painter.... signature?
Thank you for your ID efforts "flying free". I have a loot of searching to do I guess.