Städel Museum, Frankfurt am Main / ARTOTHEK

Saint Louis Art Museum, Bequest of Morton D. May 849:1983

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

London, Marie-Louise von Motesiczky Charitable Trust

Boston, Museum of Fine Arts

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