Diagram, Wall A of Wall Drawing #830 (Four Isometric Figures With Color Ink Washes Superimposed)

Graphite on yellowed tracing paper

Graphite and black crayon on off-white laid paper

Watercolor on cream wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Black and brown ink, black chalk and gray wash on off-white notebook paper

Ink and brown pencil on white wove paper

Graphite on off-white wove paper

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

Graphite on paper

Black ink on cream wove paper

Graphite on cream wove paper

Off-white card