Untitled,1958 Crayon on board 8 x 5" (20.3 x 12.7 cm)

Untitled,1958 Crayon on paper 8 x 5" (20.3 x 12.7 cm)

Untitled,1958 Crayon on paper 8 x 5" (20.3 x 12.7 cm)

Untitled,1958 Crayon on paper 8 x 5" (20.3 x 12.7 cm)

Untitled, c.1960 Crayon and graphite on paper 8 x 5" (20.3 x 12.7 cm)

Untitled,1958 Crayon on paper 8 x 5" (20.3 x 12.7 cm)

Untitled, c.1960 Crayon on paper 13 1/2 x 8 1/4" (34 x 21 cm)

Untitled, c.1960 Crayon and graphite on paper 13 1/2 x 8 1/4" (34 x 21 cm)

Untitled, c.1960 Crayon and graphite on paper 13 1/2x 8 1/4" (34 x 21 cm)

Untitled, 1958 Crayon on paper 8 x 5" (20 x 13 cm)

Untitled, c.1960 Crayon on paper 13 1/2 x 8 1/4" (34 x 21 cm)

Untitled, c.1961-1966 Graphite and colored pencil on paper 6 1/4x 7 1/2" (16 x 19 cm)

Untitled, c.1967-1975 Graphite on paper 10 1/4 x 8 1/4" (26 x 21 cm)

Untitled, c.1961-1966 Crayon and graphite on paper 6 1/2 x 7 1/2" (16 x19 cm)

Untitled, c.1976-1979 Graphite and colored pencil on paper 11 1/2 x 8 1/4" (29.5 x 21 cm)

Untitled, c.1960 Crayon on paper 13 1/2 x 8 1/4" (34 x 21 cm)

Untitled, c.1960 Crayon on paper 13 1/2 x 8 1/4” (34 x 21 cm)

Untitled, c.1960 Crayon and graphite on paper 13 1/2 x 8 1/4” (34 x 21 cm)

Untitled, c.1960 Crayon on paper 10 1/4 x 8 1/4” (26 x 21 cm)

Untitled, c.1960 Crayon and graphite on paper 13 1/2 x 8 1/4” (34 x 21 cm)

Untitled, c.1960 Crayon and graphite on paper 10 1/4 x 8 1/4” (26 x 21 cm)

Untitled, 1958 Crayon on paper 6 x 7 1/2" (15 x 19 cm)

Untitled, 1958 Crayon and graphite on paper 6 x 7  " (15 x 19 cm)

Untitled, c.1960 Crayon on paper 7 1/2 x 6" (19 x 15 cm)

Untitled, no date Crayon on paper 8 x 6" (20 x 15 cm)

Untitled, c.1967-1970 Graphite and ink on paper 10 1/4 x 8 1/4” (26 x 21 cm)

Untitled, c.1966-1967 Graphite, colored pencil, and ink on paper 10 1/4 x 8 1/4” (26 x 21 cm)

Untitled, c.1977-1980 Graphite on paper 6 x 9" (15 x 22 cm)

Untitled, c.1976-1979 Graphite on paper 12 x 8 1/4" (30 x 21 cm)

Untitled, c.1976-1980 Graphite and colored pencil on paper 6 x 9" (15 x 22 cm)