Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Elevations and sketch of floor plan

Graphite on cream laid paper

Graphite on paper

Graphite on cream wove paper

Crayon on paper

Black crayon on paper

Red chalk on illustration board

Graphite on white wove paper

Black ink and colored chalk on off-white wove paper; verso: black ink

Watercolor and graphite with scratchwork on off-white wove paper

Graphite on off-white wove paper; verso: charcoal transfer

Black ink and gray wash on cream laid paper, mounted to brown wove paper

Black ink on cream wove paper