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

Black chalk on blue-brown antique laid paper, lined with off-white wove paper

Graphite on off-white wove paper

Gouache and ink on paper

Colored marker on paper

Colored marker on paper

Graphite on newspaper

Black crayon on paper

Brown ink on off-white wove paper

Colored marker on paper

Watercolor on off-white wove paper

Graphite on ruled notebook paper, mounted on heavy card

Graphite and blue crayon on paper