Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Perspective sketch of entrance

Watercolor and black ink on cream laid paper, edges taped

Graphite on light green wove paper

Black crayon over graphite on brown wove paper

Charcoal on off-white laid paper

Graphite and ink on paper

Graphite on yellowed tracing paper

Ink and graphite on paper

Graphite on tan wove paper; verso: graphite on tan wove paper

Charcoal and wax crayon on white paper

Brown ink on white wove paper

Graphite on off-white laid paper

Graphite on paper