Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Sketches

Watercolor and graphite on cream wove paper

Graphite on off-white wove paper

Charcoal on paper

Paper

Opaque watercolor on purple construction paper

Charcoal and graphite on blue laid paper

Graphite on white wove paper

Watercolor, black ink, and charcoal on cream modern laid paper, edges taped

Graphite on paper

Watercolor on off-white wove paper

Charcoal on blue laid paper

Graphite on off-white wove paper