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Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan
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Saint Louis Art Museum, Bequest of Morton D. May 866:1983
Saint Louis Art Museum, Bequest of Morton D. May 868:1983
Museum Folkwang Essen / ARTOTHEK
Courtesy Thomas Ammann Fine Art AG