Diagram, Walls C and D of Wall Drawing #830 (Four Isometric Figures With Color Ink Washes Superimposed)

Graphite on cream wove paper

Graphite on thin off-white wove paper

Watercolor and black ink on off-white laid paper, mounted to off-white cardboard

Graphite on paper

Charcoal and black chalk on off-white wove paper; verso: charcoal

Graphite on off-white wove paper

Colored chalk and beige gouache on buff wove paper

Graphite on paper

Colored crayons on paper

Sketchbook with cardboard backing, heavy paper cover, and spiral wire binding

Turpentine wash with oil on off-white wove rag paper

Black ink, graphite, and colored chalk on cream wove paper