Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Kitchen type II, III: plan and elevations, 1:20, 1:50

Black ink on white illustration board

Graphite on paper

Graphite, watercolor and gouache on off-white wove paper

Black ink and wash on white wove paper

Black and white chalk on gray-brown laid paper

Transparent and opaque watercolor on white wove paper

Paper

Graphite on paper

Charcoal and black ink on illustration board

Graphite and ink ; graphite on paper

Paper dots numbered in black ink and mounted on blue/white graph wove paper

Black ink, blue ball-point, graphite, and red pencil on off-white wove paper