© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence

Saint Louis Art Museum, Bequest of Morton D. May 841:1983

Collection of the Frederick R. Weisman Art Museum at the University of Minnesota, Minneapolis. Gift of Ione and Hudson D. Walker, 1953.288.

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