The Board of Trustees of the National Gallery of Art commissions Calder to make a monumental sculpture for its new building. The mobile, designed specifically for the central court of the National Gallery’s East Building, is completed and installed after Calder’s death in
In 1963, Calder completed construction of a large studio overlooking the Indre Valley. With the assistance of a full-scale, industrial ironworks, he began to fabricate his monumental works in France and devoted much of his later working years to public commissions. Calder died in New York in 1976 at the age of seventy-eight.