Two Studies for "Planes by Colors, Large Nude"

Charcoal on off-white laid paper

Black marker on paper

Watercolor and white gouache over graphite [?] on gray paper

Black wash on paper

Graphite on off-white wove paper

Graphite with applied type on paper

Black ink and white opaque watercolor on olive-brown prepared paper

Metalpoint on prepared paper

Graphite on off-white wove paper

Black and white chalk on tracing paper, darkened

Black crayon on paper

Opaque and transparent watercolor over graphite on off-white antique laid paper; double framing line in black ink