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