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

Watercolor and graphite on layered off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Crayon on paper

Graphite on paper

Black crayon and graphite on cream wove paper

Graphite on off-white wove paper

Watercolor and graphite on white wove paper

Watercolor and gouache on off-white wove paper

Graphite on heavy off-white wove paper

Incised line and Aquarelle on white wove paper

Graphite and white chalk on blue-gray laid paper