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

Black crayon on buff wove paper

Graphite and white gouache on darkened off-white wove paper; verso: graphite

Watercolor and white gouache over graphite on off-white illustration board

Black crayon on paper

Watercolor on paper

Colored marker, opaque watercolor, graphite, and blue pen on paper

Gouache on cream wove paper

Brown ink, brown wash, on discolored blue paper

Black ink on white wove paper

Black crayon on paper

Black chalk on antique laid paper, framing line in black chalk

Red chalk on off-white antique laid paper; verso: brown ink