Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Plan and details, type II, III, 1:50, 1:10

Black ink on off-white wove paper

Watercolor and graphite on off-white wove paper

Charcoal on heavy green wove paper

Black ink on off-white wove paper

Black ink on cream wove paper

Charcoal on paper

Black marker on graph paper

Ink on paper

Brown and red chalk on darkened off-white wove paper

Watercolor and black ink on heavy white wove paper

Graphite on off-white wove graph paper

Graphite on buff wove paper, mounted on off-white wove paper