© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
New York, Museum of Modern Art (MoMA), Given anonymously (by exchange), 6.1942.a-c.© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence
Courtesy Galerie Thomas, München
Ann Arbor, University of Michigan Museum of Art
Boston, Museum of Fine Arts
bpk / The Metropolitan Museum of Art
Saint Louis Art Museum, Bequest of Morton D. May 867:1983
Courtesy Thomas Ammann Fine Art AG