Photograph Courtesy of Sotheby's, Inc. © 2002
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
Wiesbaden, Frank Brabandt
Washington D. C., Smithsonian Institution, Hirshorn Museum and Sculpture Garden. Gift of the Joseph H. Hirshhorn Foundation, 1966. Foto: Lee Stalsworth