Courtesy Thomas Ammann Fine Art AG
Toledo Museum of Art. Purchased with funds from the Libbey Endowment, Gift of Edward Drummond Libbey, 1983.20
Von der Heydt-Museum Wuppertal. Foto: Antje Zeis-Loi, Medienzentrum Wuppertal
Archiv Eigentümer(in) / Owner's archive
Seattle Art Museum, 55.74, Gift of Sidney and Anne Gerber
Museum Folkwang Essen / ARTOTHEK