Ketterer Kunst GmbH & Co. KG, München
Kunstpalast - ARTOTHEK
Courtesy Galerie Thomas, München
Harvard Art Museums /Fogg Museum, Bequest of Alfred Jaretzki, Jr., 1976.96. Foto: Imaging Department © President and Fellows of Harvard College
akg-images 442531
Saint Louis Art Museum, Gift of Mr. and Mrs. Joseph Pulitzer Jr. 587:1958
Milwaukee Art Museum. Gift of Mr. and Mrs. Malcolm K. Whyte. Foto: Efraim Lev-er