Anatomy study of two heads for portrait of Derek Bok : one showing musculature, one of skull

Black ink and charcoal on cream laid paper

Graphite on paper

Graphite wash, watercolor & blk crayon on off-white wove ppr; verso: blk crayon

Graphite on off-white wove paper

Graphite on ivory paper mounted on card

Graphite and photograph mounted on white paper

Watercolor on off-white wove paper

Watercolor, white gouache, and graphite on cream wove card

Watercolor and white gouache over graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Black ink, brown and gray watercolor on cream wove paper

Sketchbook with paper covers