Bayerische Staatsgemäldesammlungen - Sammlung Moderne Kunst in der Pinakothek der Moderne München
Courtesy Hauser & Wirth Collection Services
Courtesy of Norton Museum of Art, West Palm Beach, Bequest of R. H. Norton, 53.5
Detroit Institute of Arts
Washington D. C., Smithsonian Institution, Hirshorn Museum and Sculpture Garden. Gift of the Joseph H. Hirshhorn Foundation, 1966. Foto: Lee Stalsworth
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