Kunsthalle Mannheim, Foto: Kathrin Schwab
Kunstpalast - ARTOTHEK
Saint Louis Art Museum, Bequest of Morton D. May 852:1983
Archiv Eigentümer(in) / Owner's archive
Sprengel Museum Hannover / Aline Herling / Michael Herling / Benedikt Werner
Photograph Courtesy of Sotheby's, Inc. © 2017
Courtesy Thomas Ammann Fine Art AG