New York, Neue Galerie

Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern

Saint Louis Art Museum, Bequest of Morton D. May 851:1983

Minneapolis, Institute of Art

Ann Arbor, University of Michigan Museum of Art

Washington D. C., Smithsonian Institution, Hirshorn Museum and Sculpture Garden. Gift of the Joseph H. Hirshhorn Foundation, 1966. Foto: Lee Stalsworth

Saint Louis Art Museum, Bequest of Morton D. May 867:1983