That is indeed a GREAT blue vase. I'm envious.
I think it also serves to prove the point that has been made - that a number of designers did produce forms for Harrtil. I'm almost sure I've seen this vase without the inclusion of the characteristic Harrtil net, and think the form was attributed to Maria StahlÃková, Milena VelÃsková, or even Ludvika Smrckova, but more probably one one of the first two. I don't have my copy to hand, but if it's not in Raban's 'Modern Bohemian Glass', then it's certainly in Czech Glass Review somewhere. With a blooming great flower sticking out of the top, if memory serves me right...
I'm sure someone with a copy to hand can prove or disprove this thought...
Mark