Blank; verso: Rhythmic Scheme of the Portinari Altarpiece, after Hugo van der Goes

Charcoal and graphite on illustration board

Black crayon on off-white wove paper

Black ink on off-white wove paper

Charcoal on blue wove paper

Opaque watercolor on purple construction paper

Watercolor over graphite on off-white illustration board

Watercolor and graphite on white wove paper

Charcoal on cream wove paper

Graphite on paper

Charcoal on off-white wove paper

Graphite on off-white wove paper

Pink-gray pastel with twelve incised lines on white wove paper