Michael, out of curiosity, how big is the opening on your vase?
I really like these sculptural Skrdlovice vases, though I can't quite tell them apart... To my eyes, the vase in the link you gave to David's album doesn't quite look the same as yours. I look forward to see what others say.
In my album, I've got two vases (one topaz cased in clear, one green) attributed to Jan Beranek (5988) although they don't look the same. The topaz one is a bit more wild whereas the green one has got much calmer lumps and bumps. Ah, the confusion and complexity of it all... :usd: