Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Roof and gutter details, 1:10

Graphite on translucent wove paper

Black ink, watercolor, and charcoal on cream wove paper

Mixed media on paper

Graphite on off-white wove paper

Carbon paper transfer, graphite and white chalk on cream wove paper

Watercolor and white gouache over black and colored chalk on ivory wove paper

Graphite on paper

Black ink on heavy off-white wove paper

Black chalk and charcoal on off-white laid paper

Graphite on off-white wove paper

Colored pencil on buff wove paper

Charcoal on off-white laid paper