On Murano, an island near Venice, Italy, glass artisans go to work before dawn. Inside one workshop, the kilns have been howling all night, preparing colored glass for the day’s work. In 1921, Paolo Venini, a Milanese entrepreneur and designer, took over this workshop. He founded a company in his name, which has been making, among other things, Finnish designer Tapio Wirkkala’s Bolle vessel for 44 years. Roberto Gasparotto, Venini’s art director since 1993, shows us how it’s done.