
Claes Oldenburg and Coosje van Bruggen, Study for Double Screwarch Bridge, 1981. Etching and aquatint with watercolor, graphite pencil, and fiber-tipped pen, sheet (Irregular): 31 5/8 × 57 1/2 in. (80.3 × 146.1 cm) Plate: 23 1/16 × 50 3/8 in. (58.6 × 128 cm). Whitney Museum of American Art, New York; purchase, with funds from the Wilfred P. and Rose J. Cohen Purchase Fund 82.15. © Claes Oldenburg