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

Pastel on paper

Black ink on white wove paper

Graphite on cream wove paper

Pen and ink on paper

Oil pastel on white wove paper

Oil pastel on white wove paper

Gray ink on laid paper mounted on board

Black ink, watercolor, and gouache on cream paper

Oil pastel on cream wove paper

Black ink and gold paint(?) on tan paper

Black ink and graphite on cream wove paper

Watercolor on white wove paper