Design: Ball Clock Designer: George Nelson Associates Date: 1948 Manufacturer: Vitra Country of Origin: United States Materials Construction: Wood and metal, acrylic finish. Background: The exact designer of the iconic Ball Clock is unknown, even to this day. As design lore has it, George Nelson attended a dinner party with a few other prominent designers (namely Isamu Noguchi, Irving Harper, and Bucky Fuller) and a night of heavy drinking ensued. In the morning, the sketch for the Ball Clock was found on a roll of drafting paper. I dont know to this day who cooked it up, Nelson said. I know it wasnt me. Illustration by Libby VanderPloeg.