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

Graphite on heavy buff card

Graphite on paper

Graphite on off-white wove paper

Graphite on off-white wove paper (recto and verso)

Charcoal on blue laid paper

Graphite on cream wove paper

Charcoal on yellow wove paper

Charcoal on off-white laid paper

Watercolor and white gouache on off-white wove paper

Graphite on off-white laid paper

Black ink and graphite on off-white wove paper

Black ink and gray wash on cream laid paper