WattsOSUUntitled1961 · Oil on canvas81 1/8 in. × 12 ft. 5 3/4 in. × 1 1/2 in. (206.1 × 380.4 × 3.8 cm)The Metropolitan Museum of Art
Study for Cupola (final state)1960 · Brush and black ink, with blue ballpoint pen and touches of white oil paint, on buff wove paper (pieced), laid down on cream wove paper27.3 × 35.7 cm (10 3/4 × 14 1/16 in.)Art Institute of Chicago
Chicago1959 · Brush and black ink, white oil paint, and charcoal on off-white wove paper22.9 × 29.8 cm (9 1/16 × 11 3/4 in.)Art Institute of Chicago
Shovel1958 · Brush and black ink, with oil staining, on cream wove paper, laid down on ivory wood pulp laminate board33.2 × 29.7 cm (13 1/8 × 11 3/4 in.)Art Institute of Chicago
WattsOSAGAccent Grave1955 · oil on canvasFramed: 196 x 136 x 5 cm (77 3/16 x 53 9/16 x 1 15/16 in.); Unframed: 191.1 x 131.4 cm (75 1/4 x 51 3/4 in.)Cleveland Museum of Art