Thanks Ken. Czechoslovakian glass not been my thing for some time - I looked at the CD simply out of interest, especially as you hadn't quoted any pattern Nos., which thought I might offer to Roy, if I could find it.
I suspect we have a 'depends which side of the pond you're on' thing with this crystal interpretation. I think in the U.K. we tend to reserve this description for clear pieces that have a lead content - but I suspect just one of those words that has been ill-used along life's highway.
