Städel Museum, Frankfurt am Main / ARTOTHEK
Courtesy Villa Grisebach, Berlin
Detroit Institute of Arts
Kunsthalle Bremen – Der Kunstverein in Bremen. Foto: Lars Lohrisch
Archiv Eigentümer(in) / Owner's archive
Courtesy Galerie Thomas, München
Berlin, Archiv Wolfgang Wittrock
Archiv Eigentümer(in) / Owner's archive
Ann Arbor, University of Michigan Museum of Art
Boston, Museum of Fine Arts
Courtesy Hauser & Wirth Collection Services
Detroit Institute of Arts