WattsOSFSFree Space1975 · color lithographSheet: 49.5 x 66 cm (19 1/2 x 26 in.)Cleveland Museum of Art
WattsOSPSPrimary Series Blue Stone1969 · color lithographImage: 57 x 76.3 cm (22 7/16 x 30 1/16 in.); Sheet: 57 x 76.3 cm (22 7/16 x 30 1/16 in.)Cleveland Museum of Art
Preparatory drawing for In Memory of My Feelings1967 · Gouache on two sheets of acetatesheet (each): 13 15/16 x 10 7/8" (35.4 x 27.7 cm)Museum of Modern Art
Unused preparatory drawing for In Memory of My Feelings1967 · Gouache on acetatesheet (.a): 14 x 10 15/16" (35.5 x 27.8 cm); sheet (.b): 13 15/16 x 10 15/16" (35.4 x 27.8 cm)Museum of Modern Art
In-text plate (folios 99 verso and 100 recto) from In Memory of My Feelings1967 · One from an illustrated book with forty-six lithographscomposition (irreg.): 11 15/16 x 18" (30.4 x 45.7cm); page (two-page spread): 11 15/16 x 17 15/16" (30.4 x 45.6 cm)Museum of Modern Art
Untitled1964 · Felt-tip pen, pastel, and acrylic on paper22 1/4 x 30 3/8" (56.5 x 77.2 cm)Museum of Modern Art
The Civet1962 · Lithograph on off-white wove paperImage: 49 × 93.8 cm (19 5/16 × 36 15/16 in.); Sheet: 56.4 × 75.6 cm (22 1/4 × 29 13/16 in.)Art Institute of Chicago