Sorry for the lack of reply until now folks - Craig, I've just received the very same reply from Dorothy G. Hogan-Schofield - amazing!
M, Yes of course, the message back from Katharine must have been intended for Dorothy

That clears that up - I was a tad bewildered.
Good to disprove a long-standing myth. Ken, your man knows his onions. So Bohemian, namely Kralik and Harrach could be considered strong contenders now then - I wonder if we'll get a solid attribution for these vases at some stage... I'll get back to you all if I come across any useful info.
Thanks so much for your input, Charlene
Clearer pics of my vase attached for posterity
