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

Graphite and wax crayon on glossy wove paper

Charcoal on white wove paper

Graphite on off-white wove paper; verso covered in red chalk for transfer

Pastel on off-white wove paper

Graphite on heavy cream wove paper

Graphite on buff wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Opaque watercolor on heavy white wove paper

Graphite and ink on paper

Watercolor over graphite on off-white wove paper

Black ink and blue pencil on off-white wove paper; verso: black ink

Graphite on paper