when looking for an id or description of use, it can help to know the country of origin - although appreciate that glass travels, and it's often impossible to be sure of this info.
I'd also wondered about the possibility of either a 'night cap set', which might originally have had a stopper of sorts that fitted inside the cup-shaped neck, meaning that this was a carafe, or part of a guest room set. It's possible that any stopper may not have fitted, traditionally, into the neck opening.
Alternatively, possibly a 'flower centre', meaning a vase. These are both descriptions that I've found in a book on States cut glass.
For the size of the body, the neck opening - if it is a vase - is unusually small.
I could be wrong, but the cutting appears to have been acid polished, and combined with the lack of wear, would mean quite modern - possibly post 1940/50.
I wonder if, on balance, glass found in one country would have originated there more than 50/50 - or might that not be true.

Answers please, on a postcard to.................

As for expecting to find a makers mark, I'd suggest that from experience far more cut glass is seen without a backstamp, than pieces with a mark.
sorry this is not really helpful.
