Courtesy Thomas Ammann Fine Art AG

New York, Richard L. Feigen

Poughkeepsie, Frances Lehman Loeb Art Center, Vassar College, Poughkeepsie, New York, gift of Mrs. Margaret S. Lewisohn, 1954.8.1

Courtesy Villa Grisebach, Berlin

Von der Heydt-Museum Wuppertal. Foto: Antje Zeis-Loi, Medienzentrum Wuppertal

SHK / Hamburger Kunsthalle. Foto : Elke Walford