Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Balconies: plan, section, and isometric, 1:10

Charcoal on blue laid paper

Charcoal on tan wove paper, squared

Graphite on cream wove paper; verso: black ink and graphite

Graphite on tan wove paper

Crayon on paper

Graphite on paper

Graphite on white wove translucent paper

Watercolor and graphite on off-white wove paper

Watercolor and oil on cream wove paper

Graphite on off-white wove paper

Charcoal and colored chalks on a ground of rubbed charcoal heavily modeled by erasures, on off-white wove paper, mounted on Kraft paper and wrapped around a strainer

Collage with watercolor, distemper, graphite and paper on brown wove paper