Collection of the Frederick R. Weisman Art Museum at the University of Minnesota, Minneapolis. Gift of Ione and Hudson D. Walker, 1953.288.
Hilti Art Foundation, Schaan, Liechtenstein
Düren, Leopold Hoesch Museum. Foto: Aachen, Peter Hinschläger
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
© Staatsgalerie Stuttgart
Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Kende Sale Fund, 1946.
Boston, Museum of Fine Arts