bpk / CNAC-MNAM
Sprengel Museum Hannover / Michael Herling / Aline Gwose
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Saint Louis Art Museum, Museum Purchase 106:1946
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
