Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
2020 Christie's Images Limited
Städel Museum, Frankfurt am Main - U. Edelmann / ARTOTHEK
Museum Folkwang Essen / ARTOTHEK
- / ARTOTHEK
Courtesy Thomas Ammann Fine Art AG
Kunstmuseum Winterthur
bpk / The Metropolitan Museum of Art