The artist (1887-1948). Charlotte Weidler, New York, 1962; [Galerie Chalette, New York, 1963]; Madeleine Lejwa, New York; [Galerie Brusberg, Hannover, 1979]; [Ernst Schwitters, Lysaker and Marlborough International Fine Art, London and Vaduz, 1979-1985]; [Marlborough Gallery, New York]; sold in 1985 to Janice and Henri Lazarof, Los Angeles; given in 2005 to LACMA.