Calder designs the sets and costumes for Nucléa, written by Henri Pichette. The costumes include two large silver necklaces and a silver bracelet.
Calder had a major show in 1946 at Galerie Louis Carré in Paris for which Jean-Paul Sartre wrote a seminal essay. He designed sets and costumes for a number of theatrical performances and designed a huge acoustic ceiling for the Aula Magna auditorium at Universidad Central de Venezuela. In 1952, Calder represented the United States at the Venice Biennale, winning the grand prize for sculpture.