Harvard Art Museums /Fogg Museum, Bequest of Alfred Jaretzki, Jr., 1976.96. Foto: Imaging Department © President and Fellows of Harvard College
Archiv Eigentümer(in) / Owner's archive
Kunsthalle Bremen – Der Kunstverein in Bremen. Foto: Lars Lohrisch
Saint Louis Art Museum, Bequest of Morton D. May 854:1983
Minneapolis, Institute of Art
Courtesy Galerie Thomas, München