Installation view of Earthworks, by Robert Smithson, Dwan Gallery, New York, N.Y., Oct. 1968 Identification on verso(typed): Exhibition: Earthworks, Dwan Gallery, New York, October 1968
Robert Smithson Earthworks, 1968 / unidentified 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