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Museum Folkwang Essen / ARTOTHEK
Courtesy Metropolitan Museum, New York (Sabine Rewald)
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Courtesy Galerie Thomas, München
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan
Saint Louis Art Museum, Bequest of Morton D. May 867:1983