This has most of the attributes of an 18th century wine glass. The observant will notice a few omissions and errors.
Firstly this wine glass lacks any marvering lines on the stem, there are no touch spots or pucella marks in the bowl.
The colour and form is right for a Georgian glass. However note the differences. The glass is free from any inclusions, there are no fold lines in the bowl, these differences however are not always obvious within images. The pontil scar has a smooth flat
There was a whole industry in germany from the mid 18th century to the 1930s which specialised in items for dolls houses. Everything in miniature. I doubt that this set was ever played with, it does not have a scratch !