Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Window frame schedule, 1:100

Watercolor and graphite on cream wove paper

Graphite on paper

Oilstick on white wove paper

Graphite and gesso on paper

Graphite on paper

Watercolor and white gouache over graphite on heavy off-white wove paper

Graphite on paper

Graphite on buff wove paper

Watercolor on heavy off-white wove paper

Black ink over graphite on off-white illustration board

Graphite on off-white wove paper

Ink on paper