Hi Michael ,
Thank you very much for directing me to Zemek. I went through the old Frantisek Zemeks's catalogue and found a vase which is very similar to mine. Label of the picture says: Cut vase - 1956 Skrdlovice. Surprisingly, because the other cut vases in the catalogue are from Mstisov. I get the Zemek's catalogue from Jindra Parik's pages some time ago, but unfortunately those images are not available today, so I am attaching the image from catalogue instead of the original link.
Thanks again for very promising starting point for further investigation!
Torysa