Untitled (Study for "15 Serial Rows of Equal Amounts of Color with Bright Emphasis")

Graphite and acrylic on cream wove paper

Oil pastel on cream wove paper

Ink on paper

Black ink and watercolor on laid paper mounted to board

Black ink, gouache, and bitumen on brown wove paper

Black crayon on white wove paper

Watercolor and gouache on cream wove paper

Graphite on cream wove paper, darkened

Black ink and graphite on cream wove paper

Watercolor on paper

Watercolor on white wove paper

Pastel on paper