Title: Photostat of Spiral Hill
Date: not before 1971
Physical Details: 1 photographic print : photostat ; 18 x 17 cm.
Description: Photostat depicting negative image of Spiral Hill by Robert Smithson.
Date derived from date of Spiral Hill.
Rights Statement: Current copyright status is undetermined
Citation: Photostat of Spiral Hill, not before 1971 / unidentified photographer. Robert Smithson and Nancy Holt papers, 1905-1987, bulk 1952-1987. Archives of American Art, Smithsonian Institution.
Digital ID: 13748