ART GLASS.
Bubbelglas. Green glass with bubble. Height 18 cm.
In 1932 Karhula and Iittala glass factories organized a competition in glass design: Bubbelglas won first prize in the art glass-cathegory. It also won a prize in the Triennial in Milan in 1933.
Source: 100 vuotta Karhulan lasia. Suomen Lasimuseon tutkimusjulkaisu 1989 pp. 66, 70.
Arttu Brummer. Taideteollisen korkeakoulun julkaisuja B20 1991 p. 28.