Hello Chris - welcome to the GMB

- the short answer is no, I've not a clue as to an attribution, age or origin - sorry.
It appears that this is a decanter - think I'm seeing a stopper - am I correct? Unfortunately, I can't really make out what the moulded marks or whatever, on the underside, are supposed to be - are you able to clarify, please - are they letters or Nos. possibly.
It's always possible that these marks will simply be a factory code, production No., or a makers mark of some description, but insufficient for us to decode the maker.
It may or may not help the more knowledgeable here, but your subject heading tells us nothing about this item - out of interest a few words as to the size and perceived use, plus a very brief description, would possibly be of interest - we don't charge, even for quite a few extra words

Are you suggesting that you consider the glasses might possibly form some sort of 'set' and belong to this bottle, or am I reading too much into your words?
Presumably this isn't something you have acquired - so bought or acquired by a family member perhaps.
Sorry to be negative on your first outing with the GMB - but as you can imagine the world is knee deep in glass in a zillion different shapes, sizes and colours, and whilst we do our best, we don't always succeed.
you might add pix of the stopper - assuming this is a decanter, and an idea of height of the whole bottle, will be of interest.