Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Plan type I, 1:50

Black ink and graphite on thin buff wove paper

Graphite on cream laid paper

Graphite on paper

Graphite on paper

Beeswax, graphite, detritus and debris on wove paper

Black ink, watercolor, watercolor pencil, and charcoal on cream wove paper

Watercolor and graphite on off-white wove paper

Charcoal on off-white laid paper

Graphite on cream wove paper

Graphite on cream wove paper

Pastel on off-white illustration board

Charcoal on off-white laid paper