These are 2 1/2″ footed cordials made by IIttala, Finland in the Ultima Thule pattern, designed by Tapio Wirkkala. They date to the 1960’s.
I found the following information about the designer on Iittala.com
Tapio Wirkkala 1968
Inspired by the melting ice in Lapland, Wirkkala originally created the surface in the 1960s after carving into a graphic mould. An exclusive design reflecting the thousands of hours spent perfecting the glass-blowing technique required to produce the effect. The patterns gradually change as the glass burns the surface of the wooden moulds.
Please Note: these glasses are now SOLD!!
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