Courtesy Galerie Kornfeld, Bern
Archiv Eigentümer(in) / Owner's archive
2004 Christie's Images Limited
Archiv Eigentümer(in) / Owner's archive
Museum Folkwang Essen / ARTOTHEK
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