| Robert Smithson Bingham Copper Mining Pit Utah / Reclamation Project 1973 Photostat and plastic overlay with wax pencil 47 x 34.3 cm (18 1/2 x 13 1/2 in) Metropolitan Museum of Art Purchase, Pat and John Rosenwald Gift, 2001 (2001.293)
Estate of Robert Smithson/Licensed by VAGA, New York, NY LL/6378
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