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

Black crayon on paper

Black and red marker on paper

Ink on paper

Black crayon on paper

Black and white photographs, adhesive, and blue ink on paper

Colored marker on paper

Colored marker and sticker on paper

Colored marker on paper

Blue and purple crayon on paper

Graphite on paper

Graphite on paper

Ink on paper