Details from the Legend of the True Cross, after Piero della Francesca; verso: Sketch and color wheel with notes

Colored crayon on paper and mounted

Graphite on paper

Colored pencil and graphite on cream wove paper

Colored crayons on paper

Graphite on cream wove paper laid down to off-white wove paper

Graphite on paper

Black ink on tan wove paper

Colored pencil on off-white card

Graphite on off-white laid paper

Graphite on off-white wove paper

Incised line and Aquarelle on white wove paper

Graphite on darkened off-white wove paper