Untitled (details and notes on "Silberne Frequenz" in Münster, left page); Untitled (notes, right page)

Black crayon on paper

Black marker, black pen, and graphite on sheets of paper and adhesive on paper

Colored marker on paper

Graphite on paper

Graphite with colored crayon ; graphite on paper

Graphite on paper

Graphite on paper

Ink on paper

Black and yellow crayon on paper and mounted

Black crayon on paper

Graphite and colored pencil on paper

Gouache over graphite on white wove paper