
1976
Robert Mangold, A Square With Four Squares Cut Away, 1976. Ink stamp, sheet (Irregular): 8 × 8 in. (20.3 × 20.3 cm) Image (Irregular): 8 × 8 in. (20.3 × 20.3 cm). Whitney Museum of American Art, New York; gift of Ruth and Richard Shack 94.12.7. © Robert Mangold / Artists Rights Society (ARS), New York