Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Penthouse: plan, sections, 1:50

Graphite on paper

Black ink over graphite on off-white wove paper

Gouache and charcoal (?) on cream wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Colored crayons on paper

Watercolor and Chinese ink on white wove paper

Black ink and wash on tan wove paper

Black ink on off-white wove paper

Charcoal heightened with white chalk on white paper

Black pencil on gray paper