
1973
Carl Andre, Smithsonite Spiral, 1973. Zinc plated steel, overall: 30 × 27 in. (76.2 × 68.6 cm). Whitney Museum of American Art, New York; gift of the Estate of Robert Smithson 2008.324a-mmm. © Holt-Smithson Foundation / Licensed by VAGA at Artists Rights Society (ARS), New York