Detail of Verification of the True Cross, after Piero della Francesca

Graphite on paper

Watercolor and gouache over graphite on cream wove paper

Watercolor and white gouache over graphite on off-white wove paper

Black ink, watercolor, and metallic paint over graphite on cream wove paper; album leaf: black ink and graphite

Turpentine wash with oil, oil crayon and graphite on cream laid paper

Watercolor and graphite on cream wove paper

Graphite on off-white wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper mounted to off-white cardboard

Watercolor on white wove paper

Black crayon on thin buff wove paper

Graphite, red pencil, and blue ballpoint ink on thin white wove paper