Set of 4 elegant modernist glasses Kasperi, designer Erkki Siiroinen, Riihimäki Finland

Set of 4 glasses from Kasperi series for water, beverage, and juice by Finnish designer Erkkitapio Siiroinen. It is very elegant, impressive, and rather rare one.

1971-72. Riihimäki glassworks. Height 9,3 cm. Excellent vintage condition. Number 1870 in Riihimäki catalog