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

Black chalk, charcoal, and graphite on off-white laid paper

Sketchbook with brown cloth-covered cardboard covers

Graphite with extensive stumping on cream wove paper

Graphite and red crayon on cream paper

Watercolor over graphite on white wove paper

Colored marker and black pen on paper

Graphite on paper

Black ink, brown and gray wash on cream antique laid paper; verso: graphite

Red tempera on acetate

Black crayon on paper

Black marker on paper

Graphite on paper