Notes and diagram of the Legend of the True Cross by Piero della Francesca

Watercolor on off-white wove paper

Crayon on paper

Graphite and purple ink on off-white wove paper

Black ink and gray wash on cream laid paper

Charcoal and orange chalk on blue-gray laid paper

Graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite, charcoal, black ink and white gouache on buff wove paper

Graphite on paper

Black ink and gray wash on cream laid paper, mounted to brown wove paper

Mixed media mounted on masonite and wood supports

Charcoal on cream laid paper