One interesting aspect of these bud vases is that many came fom Harrach'ov, controlled bubble, Harrtil and marbled/arlecino, and most arrived in the UK via one single importer, Jaffe Rose, whose close ties to Harrach'ov are not yet clearly understood. Certainly having looked at Pat's site, there are forms that can clearly be traced as Metelak designs, often as the bases match particular sets of drinking glasses designed by him during the '50s, 60s and 70s.
regards,
Marcus