In Czech glass design in an age of Adversity by Arnoldsche, there is a pic of a propeller vase,
Colourless glass with a yellow tinge. It says designed by Jan Kotik 1955, executed by
Emanuel Beranek. "The vase is a document for Kotiks cooperation with Emanuale Beranek in Skrdlovice"
So i expect my vase was made by Emauel Beranek, based on jan Kotiks design
Just found this link,http://www.glassmessages.com/index.php?topic=29612.0
I think from that thread, mine is a propeller vase
"Skrdlovice, Czechoslovakia, Jan Kotik 1955,
pattern 5503" quote from Jindrich.
Jindrich, am i right with this one
(Astrid, look forward to seeing yours