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

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