FontanaArte, the Milanese manufacturer of glass furniture, counts four great artistic directors. You may have heard of them: Gio Ponti, Pietro Chiesa, Max Ingrand, and Gae Aulenti. The venture began around 1930, when Luigi Fontana approached the young Ponti, already a successful Milanese architect, with the idea to collaborate. Ponti designed two iconic pieces for Fontana—the 0024 suspension lamp and the Bilia table lamp, both in 1931—and the company was born. Over the next 100 years, the firm passed from one venerable pair of hands to another. This exhibition looks at all four designer-directors and examines their impact on 20th-century modernism and postmodernism. —Elena Clavarino