Städel Museum, Frankfurt am Main - U. Edelmann / ARTOTHEK
Courtesy Galerie Thomas, München
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
Courtesy Galerie Thomas, München
2013 Christie's Images Limited
Kansas City, Missouri, The Nelson-Atkins Museum of Art. Gift of the Friends of Art, 54-86. Image courtesy Nelson-Atkins Media Services / Photo: Jamison Miller