untitled, 1970 Paint on paper, 41⅜ x 29⅝ in. / 105.1 x 75.2 cm. untitled, 1970 Pencil and paper on board, 40 ¼ × 30 ⅛ / inches 102.2 × 76.5 cm. untitled, 1970 Paper & pencil on paper on board, 41⅝ x 27¼ in. / 105.7 x 69.2 cm. untitled, 1970 Paint and graphite on paper, 40½ x 32 in. / 102.9 x 81.3 cm. untitled (Circle Cluster), 1972 Mixed media on paper, 24x18 in. / 61 x 45.7 cm. untitled, 1972 Marker, paint or ink on paper, 30¼ x 22½ in. / 76.8 x 57.2 cm. untitled, 1973 Paint on paper, 23 ¾ × 18 in. / 60.3 × 45.7 cm. untitled, 1975 Paper on board, 40 x 32 in. / 101.6 x 81.3 cm. untitled, 1979 Gouache on paper, 41½ x 27 in. / 105.4 x 68.6 cm. untitled, 1979 Paint and pencil on paper, 30 x 22½ in. / 76.2 x 57.2 cm.