Study for portrait of Derek Bok in front of triptych with President's chair

Black ink on off-white wove paper

Graphite on very thin cream laid paper

Black ink and charcoal on yellow wove paper mounted to cardboard

Black ink and gray wash on cream laid paper

Transparent watercolor, colored pencil, and crayon on white wove paper

Pastel and black chalk on off-white wove paper

Graphite on paper

Watercolor and graphite on cream wove paper

Charcoal on off-white wove paper

Graphite on paper

Black ink and watercolor pencil on cream wove paper

Graphite on paper