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

Black ink on paper

Graphite on paper

Black crayon on paper

Colored marker and black pen on paper

Graphite on cream wove paper

Black crayon on paper

Graphite with brown and blue crayon on paper

Graphite on paper

Black crayon on paper and mounted

Graphite and green crayon on paper

Red marker and black pen on paper

Ink on paper