Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Ground floor plan, 1:100

Watercolor

Graphite on paper

Watercolor and graphite on cream wove paper

Black ink on tan wove paper

Watercolor and graphite on white wove paper

Watercolor on ruled off-white wove paper

Black crayon on tan wove paper

Watercolor and white gouache on off-white wove paper

Watercolor on off-white wove paper

Graphite on cream wove paper

Watercolor on off-white wove paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper