Courtesy Thomas Ammann Fine Art AG
Poughkeepsie, Frances Lehman Loeb Art Center, Vassar College, Poughkeepsie, New York, gift of Mrs. Margaret S. Lewisohn, 1954.8.1
Saint Louis Art Museum, Bequest of Morton D. May 851:1983
Von der Heydt-Museum Wuppertal. Foto: Antje Zeis-Loi, Medienzentrum Wuppertal
Courtesy Galerie Thomas, München