This clock symbolizes what defined George Nelson, whose work is featured in the Museum's collection, as one of the 20th century's signature designers: a joyous, often irreverent exploration of form and inspired simplicity. The Multicolor Ball Wall Clock is an exact replica of the original design, which was designed in 1948. It is made of wood and metal, and has been updated with a quartz movement. Produced by Vitra. One AA battery is included.