Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Sketches

Graphite on off-white wove paper

Graphite on translucent vellum paper, the reverse printed with a grid

Black ink and charcoal on beige laid paper

Watercolor and graphite on white wove paper

Black ink over graphite on thin tracing paper mounted to off-white cardboard

Black ink on off-white wove paper

Mixed media mounted on masonite and wood supports

Graphite on paper

Brown wash and white gouache over graphite on blue wove paper

Black ink and graphite on off-white wove paper

Graphite on cream wove paper

Charcoal on off-white laid paper