Courtesy Thomas Ammann Fine Art AG
Courtesy Villa Grisebach, Berlin
Archiv Eigentümer(in) / Owner's archive
Saint Louis Art Museum, Bequest of Morton D. May 851:1983
Von der Heydt-Museum Wuppertal. Foto: Antje Zeis-Loi, Medienzentrum Wuppertal
Collection of Phoenix Art Museum, Gift of Dr. and Mrs. Richard Levy