Lygia Clark (Brazilian, 1920-1988). Sundial, 1960. Aluminum with gold patina. Dimensions variable, approximately 20 7/8 x 23 x 18 1/8” (52.8 x 58.4 x 45.8 cm). The Museum of Modern Art, New York. Gift of Patricia Phelps de Cisneros in honor of Rafael Romero. Courtesy Associação Cultural “O Mundo de Lygia Clark,” Rio de Janeiro 