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Museum Folkwang Essen / ARTOTHEK

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Courtesy Galerie Thomas, München

Courtesy Metropolitan Museum, New York (Sabine Rewald)

Berlin, Archiv Wolfgang Wittrock

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bpk / Los Angeles County Museum of Art / Art Resource, NY

Courtesy Galerie Thomas, München

© Staatsgalerie Stuttgart

Columbus Museum of Art

Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich

2018 Christie's Images Limited

Courtesy Metropolitan Museum, New York (Sabine Rewald)

Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan

Courtesy Galerie Thomas, München

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