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

Graphite on white wove paper

Black conté crayon on ivory tracing paper

Black ink and graphite on cream board

Watercolor and graphite on cream wove paper

Graphite on cream laid paper

Graphite on blue laid paper

Black ink and graphite on cream wove paper

Graphite on off-white tracing paper

Graphite

Black crayon on thin ivory wove paper

Charcoal, white pencil, black ink, red watercolor (or ink) on off-white wove paper

Transparent and opaque watercolor and black ink over graphite on white wove paper