Three studies for portrait of Derek Bok: two of "The Great Salt" and one of an altarpiece

Beeswax, graphite, detritus and debris on wove paper

Graphite on paper

Graphite on paper

Charcoal on off-white laid paper

Graphite on cream wove paper

Cloth bound sketchbook

Black ink on slide film, hand colored

Graphite on darkened off-white wove paper

Black ink on off-white wove paper

Black ink over graphite on thin tracing paper, mounted to off-white cardboard

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Incised line and Aquarelle on white wove paper