Study of head for portrait of Derek Bok, facing right

Black ink, graphite and black type on commercially printed cream wove paper

Black ink on paper

Black ink on off-white wove paper

Graphite on buff wove paper

Charcoal on gray wove paper

Graphite on translucent vellum paper

Watercolor and graphite on off-white wove paper

Ink on paper

Black ink on cream wove paper

Black ink on off-white wove paper

Charcoal, white pencil, black ink, red watercolor (or ink) on off-white wove paper

Watercolor and graphite with scratchwork on off-white wove paper