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
Courtesy Thomas Ammann Fine Art AG
Archiv Eigentümer(in) / Owner's archive
Saint Louis Art Museum, Bequest of Morton D. May 853:1983