He made deeply cut crystal objects that were often coloured. He used a lot of nature subjects. The most famous is “Lumpeenkukka”. This glass object, designed by Okkolin in 1960, was Riihimäki Lasi’s best-selling single object. Okkolini’s glassware was presented to several foreign heads of state. He continued working for Riihimäki Glass until 1976 when glassblowing by hand was stopped. After that, he worked as a freelance designer. He was granted a state artist’s pension in 1980.
Alfredo Barbini, a descendant of glassmakers from the early 15th century, studied at Abate Zanetti (design school at Murano glass museum) from age ten; in 1930, began studying at Cristalleria, Murano, becoming a maestro; became primo maestro at Martinuzzi and Zecchin; worked with Cenedese in the late 1940s
Motzfeldt is best known for her glass creations. Her work is on show at the National Museum of Art, Architecture, and Design in Oslo, the Victoria and Albert Museum in London, the Kunstindustrimuseum in Copenhagen, the Nationalmuseum in Stockholm, and the Frauenau Glass Museum in Germany (donation Wolfgang Kermer).
Murano glassware was historically decorated with opulent rubies and gold and fanciful forms in vibrant colours. He hired freelance designers like Martinuzzi and Fulvio Bianconi regularly. Gio Ponti from 1927, Carlo Scarpa from 1932, Eugene Berman from 1951, Ken Scott from 1951, Franco Albini from 1954, and Massimo Vignelli from 1956 were the designers he commissioned.