Sketchbook: "Perforations" Leopold Hirsch Museum Düren 'Papierkunst' ("alle Objekte perforiert aus Papier and Pappe")

Black crayon and graphite on paper

Black marker, red pen, graphite, cardstock, and adhesive on paper

Paper

Graphite on paper, mounted

Colored crayons on paper

Charcoal on paper

Red marker and graphite on paper

Graphite and charcoal on paper

Colored marker on paper

Graphite on paper

Colored marker on paper and translucent film

Graphite on paper