wonderful Robert - and thanks again for helping with these.

I do in fact collect drinking glasses (tumblers in particular), so these will most definitely stay with me.
Your comments regarding the Eastern European origin of this style of text/writing, is supported by the ground/polished flat bases and rims - quite typical of pieces we in the U.K. see on glass that has originated from the Continent of Europe.
One of the pieces does show considerable wear to the smooth base, and whilst I appreciate that wear can be misleading in terms of dating, it does suggest, in my opinion, a date of somewhere much earlier in the C20.
However, I'm open to be corrected on that if anyone else has a more informed suggestion.
