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

Watercolor over graphite on off-white wove paper

Crayon on paper

Watercolor and black ink on heavy off-white wove paper

Graphite on paper

Black ink on white Saunders watercolor board

Sketchbook with paper-covered cardboard covers

Watercolor on off-white wove paper

Mixed media on paper

Graphite on graph paper

Pastel on white paper

Graphite with ink on paper

Sketchbook with brown paperboard cover and spiral wire binding