Found this vase in a Prague antique shop, and they said it was a Hlave design. Just looking for confirmation - for some reason the name of Vizner keeps popping up when I look at it, but I might be confusing it with a different design. And I seem to remember there is a thread somewhere on a similar vase, but I can't find it... More info welcome!
22 cm high, 8 cm diameter. Very thick, probably crystal. I'm thinking Crystalex Novy Bor 60s-70s as for the where and when. It's got the right age, judging from the little scratches and the little bits of grime in the areas where cleaning is difficult.