Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Balcony: plan and sections, 1:10

Graphite on paper

Black ink, graphite, and yellow chalk on thin buff wove paper

Watercolor over graphite on heavy off-white wove paper

Watercolor on thin white wove paper

Graphite on paper

Crayon on paper

Graphite on off-white wove paper

Charcoal and wax crayon on white paper

Graphite and black ink on off-white wove paper

Dyes, opaque water-based paint, pastel and metallic powder on thick white wove paper

Graphite on off-white wove paper

Black ink, brown wash and white gouache over graphite on heavy off-white wove paper