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

Graphite on paper

Black marker on paper

Graphite on paper

Graphite on paper

Colored marker and blue pen on paper

Watercolor and graphite on off-white wove paper

Black and red marker on paper

Colored crayons on paper

Colored crayons on paper

Black marker and black pen on paper

Graphite and colored pencil on white wove paper

Graphite on off-white wove paper