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

Graphite and ink on paper

Black ink and graphite on ivory laid paper

Black ink on off-white wove paper

Watercolor and white gouache on cream wove paper

Graphite on off-white wove paper

Black ink and colored chalk on translucent buff wove paper

Graphite on heavy weight, white card stock (Strathmore Bristol board)

Pastel and graphite on layered cream modern laid paper

Watercolor over graphite on off-white wove paper

Graphite on cream wove paper

Graphite on paper

Graphite on translucent wove paper