Archiv Eigentümer(in) / Owner's archive. Foto: Maurice Aeschimann
Courtesy Beck & Eggeling, Düsseldorf
Courtesy Galerie Thomas, München
Harvard Art Museums /Fogg Museum, Bequest of Alfred Jaretzki, Jr., 1976.96. Foto: Imaging Department © President and Fellows of Harvard College
akg-images 442531
Courtesy Hauser & Wirth Collection Services
Courtesy Metropolitan Museum, New York (Sabine Rewald)
Saint Louis Art Museum, Bequest of Morton D. May 863:1983
Bayerische Staatsgemäldesammlungen - Sammlung Moderne Kunst in der Pinakothek der Moderne München