Denver Art Museum Collection: Gift of Rosa Kuschei, 1948.38. Photograph courtesy of the Denver Art Museum
2004 Christie's Images Limited
akg-images 5001601
Courtesy Villa Grisebach, Berlin
Hilti Art Foundation, Schaan, Liechtenstein
Courtesy Thomas Ammann Fine Art AG
Ahlen, Kaldewei Kulturstiftung. Foto: Fotostudio Bartsch, Berlin
Saint Louis Art Museum, Bequest of Morton D. May 853:1983