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

Gouache and collage on off-white wove paper

Graphite and charcoal on paper

Pastel on brown wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor and graphite on white wove paper

Black ink on off-white card

Graphite on paper

Incised line and Aquarelle on white wove paper

Colored crayons on paper and mounted

Charcoal on off-white laid paper

Black ink on thin off-white wove paper