Hi Michelle,
Are these the Bo Borgstrom for Aseda vases that you're describing with the clear bases? These stand 10 inches tall.
These were bought separately and on close inspection, they're not a pair.
I'm a novice but I'm guessing the one on the right to be older ?
...because the clear lead crystal isn't such a clear colour, it's a bit yellowed, the ground out and polished pontil on the bottom is more deeply indented, and the bubbles are different, coming up in tiny curved streams from the base.
These are two of my favourites, it would be good to know their origin.
Tina