Saint Louis Art Museum, Bequest of Morton D. May 843:1983

Bayerische Staatsgemäldesammlungen - Sammlung Moderne Kunst in der Pinakothek der Moderne München

2010 Christie's Images Limited

akg-images 5010389

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

Board of the Trustees of the University of Illinois on behalf of its Krannert Art Museum University of Illinois. Purchase through the Festival of Arts Purchase fund 1950-2-1