Three studies for portrait of Derek Bok: two of "The Great Salt" and one of an altarpiece

Black ink and graphite on cream wove paper; verso: black ink, graphite, and red crayon

Watercolor and white gouache over graphite on off-white wove paper

Black ink on off-white wove paper (recto and verso)

Graphite on cream tracing paper

Black ink on white wove paper

Graphite on gray wove paper

Watercolor and white gouache on buff card

Two signatures, without covers

Purple and blue crayon on paper

Charcoal on off-white laid paper

Graphite on off-white wove paper

Graphite on thin modern laid paper