bpk /Los Angeles County Museum of Art / Art Resource, NY
2016 Christie's Images Limited
Courtesy Galerie Thomas, München
2020 Christie's Images Limited
Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Kende Sale Fund, 1946.
Courtesy Galerie Thomas, München
Zürich, Kunsthaus
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
bpk / The Metropolitan Museum of Art
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan