Dirk, thank you so much for researching my vase!
The Josef Schott designs for Smalandshyttan do have some similarities, but the patterns seem to be more geometric, whereas the decor on mine looks more random and irregular...
Had another look at the gralglas CD, but couldn't find anything (BTW, your Sirius vase is gorgeous, one of the pieces high on my wishlist).
So I am leaning towards Scandinavia at the moment...
Thanks,
Michael