Carl Oscar Simon Gate was a painter, graphic designer, glass artist, and book illustrator and portraitist. He attended the Technical School from 1902-05 and then the Academy of Arts. Later he travelled to Denmark, France, Germany and Austria. From 1909, he focused on portrait and landscape painting, but also started to illustrate books and dime novels. In 1916, Gate joined Orrefors’ Glassworks, where he was artistic director until his death, and with his colleagues Edward Hald and glassblower Knut Bergqvist (1873-1953), he invented the so-called Graal glass (goblet glass). He and Hald were also prominent at the 1925 Paris World Exhibition, which was the international breakthrough for both of them. They also developed the Swedish variant of Art Deco and were considered the founders of Swedish glass art.