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