Study of head for portrait of Derek Bok, facing right

Colored crayons on paper

Black ink on off-white wove paper

Charcoal on off-white laid paper

Graphite on off-white wove paper

Transparent and opaque watercolor on white paper mounted to board

Black ink on white wove paper

Black ink and colored chalk on off-white wove paper; verso: black ink

Red chalk and brown watercolor on tracing paper; verso: black chalk

Pastel on blue wove paper

Charcoal on modern laid paper

Carbon ink from carbon paper, typed, on cream wove paper

Graphite on brown wove paper