Privatsammlung in der Hamburger Kunsthalle. Foto: Elke Walford
© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
Photograph Courtesy of Sotheby's, Inc. © 2010
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Hilti Art Foundation, Schaan, Liechtenstein
Boston, Museum of Fine Arts