Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: North entrance: plan, elevations, section, 1:20, 1:10

Graphite on paper

Graphite on off-white wove paper

Charcoal on gray wove paper

Watercolor and graphite on cream wove paper; verso: graphite, black ink, colored pencil

Multiple drawing media on prepared white wove paper

Black ink and gray wash on cream laid paper

Charcoal on blue-flecked beige laid paper

Graphite on ruled notebook paper, mounted on heavy card

Watercolor over graphite on ivory wove paper

Graphite on prepared paper mounted on card, with extensive scratchwork

Watercolor and graphite on off-white wove paper

Oil on tracing paper