Courtesy Thomas Ammann Fine Art AG

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

Privatsammlung in der Hamburger Kunsthalle. Foto: Elke Walford

Courtesy Metropolitan Museum, New York (Sabine Rewald)

Saint Louis Art Museum, Bequest of Morton D. May 867:1983

Courtesy Thomas Ammann Fine Art AG