Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Sketch of elevation with penthouse

Graphite on off-white wove paper

Ink on paper

Pink-gray pastel with twelve incised lines on white wove paper

Graphite on paper

Crayon on paper

Charcoal and white chalk on brown laid paper

Graphite on paper

Graphite on paper

Turpentine wash with oil on off-white wove rag paper

Graphite and gesso on paper

Watercolor over graphite on off-white wove paper

Black crayon on paper