I don't get the feeling this has much age.
I can't help much more than that - I would suspect contemporary-ish Polish again.
Polish glass is still very highly under-rated in my NSHO. Very little is known world-wide, about several fabulous makers - going back as far as the '30s.
In fact, very little is known world-wide about the full extent of truly fabulous Polish art of every kind going right back to the 12th century and right up to today.
I've been lucky enough to have had 3 wonderful holidays in Poland, culture-vulturing from morning to night, with the joy of having eyes only accustomed to art from outside previous Iron Curtain nations.
The world has yet to discover the delights of Polish art and culture - a centuries-deep treasure-trove of joy and wonder.