Study for portrait of Derek Bok with terra cotta Madonna: seated figure facing right next to President's chair

Charcoal on off-white laid paper

Black ink on off-white Japanese paper

Graphite on off-white wove paper

Black ink over graphite on off-white wove paper

Incised line and Aquarelle on white wove paper

Black conté crayon on ivory tracing paper

Paper, glassine

Crayon on paper

Ink on paper

Black crayon on off-white wove paper

Watercolor and graphite on white wove paper

Graphite on off-white wove paper