Hello again,
I try to find out something about this glass. It is 13 cm high and has a cut decoration that is gilt, as you can see in the photos. On the foot it has a rough pontil mark and a lot of wear, and there are seeds in the glass. It rings quite well. My thought was that it is Beykoz and early 19th century, but I have not yet seen this "European" form of glass from Beykoz (ok, I have not seen too many examples, so maybe I just do not have enough knowledge...)? Or maybe it is something completely different? Thank you for any help you can give me!
Mat