I browsed other Czech resources. Looks that this piece was designed in 1956 for Rudolfova hut.
Milos Filip (1926 - 1966) great designer had suicided because lost girl friend. I have been told that this girl was another great designer M. Svobodova - the most attractive girl from Academy.
This information has to be confirmed - but we know firmly that Filip and Svobodova were couple for a while.
Jindrich
www.cs-sklo.cz