Courtesy Metropolitan Museum, New York (Sabine Rewald)
Museum Folkwang Essen / ARTOTHEK
Courtesy Galerie Schwarzer, Düsseldorf
Hilti Art Foundation, Schaan, Liechtenstein
Courtesy Galerie Thomas, München
Collection of Phoenix Art Museum, Gift of Dr. and Mrs. Richard Levy
Archiv Eigentümer(in) / Owner's archive
Saint Louis Art Museum, Bequest of Morton D. May 867:1983
SHK / Hamburger Kunsthalle. Foto : Elke Walford