Untitled (bleed-through of previous page, left page); Untitled (designs for "Zero Raum," right page)

Dark brown ink, brown and gray wash, white gouache, and traces of black and red chalk and graphite on cream antique laid paper

Brown ink and gray wash and incidental white opaque watercolor on off-white antique laid paper, inlaid on a mount

Black crayon or charcoal on paper

Black crayon on paper

Graphite and colored pencil on paper

Graphite on paper

Black chalk on cream antique laid paper

Ink on paper

Graphite on paper

Colored pencil, graphite, opaque correcting fluid and photocopy on white wove paper

Watercolor on tracing paper

Colored marker on paper