Archiv Eigentümer(in) / Owner's archive
Nationalgalerie, SMB / Jörg P. Anders
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
Saint Louis Art Museum, Bequest of Morton D. May 859:1983
Cleveland Museum of Art. Gift of Mrs. Henry White Cannon by exchange 2013.7