Study for portrait of Derek Bok with "Perugino" triptych in background: seated figure facing right with chair

Graphite on off-white wove paper

Black ink and black wash on tan wove paper

Black ink on heavy off-white wove paper

Watercolor over graphite on off-white wove paper

Watercolor and oil on white wove paper

Colored pencil, crayon, and graphite on cut brown paper bag

Watercolor, white gouache and graphite on off-white cardboard

Graphite on paper

Charcoal on brown wove paper

Graphite on paper

Watercolor and graphite on off-white wove paper