Identification on verso (typed): Robert Morris; Card File; 1961; Mixed Media on board; 27" x 10 3/4" x 2".
Card File by Robert Morris, 1961 / Walter Russell, photographer. Dwan Gallery (Los Angeles, California and New York, New York) records, 1959-circa 1982, bulk 1959-1971. Archives of American Art, Smithsonian Institution.
Current copyright status is undetermined
Archives of American Art, Smithsonian Institution Washington, D.C. 20560