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

Watercolor & white gouache over black & colored chalk on off-white wove paper

Black ink, blue-gray and purple watercolor, graphite, and white gouache on cream wove paper, scorched and repaired with notebook paper patch; verso: blue-gray watercolor and graphite

Graphite, watercolor and white gouache on brown wove paper

Collage on paper

Graphite and colored pencil on paper

Charcoal on cream laid paper

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

Graphite on paper

Black ink on cream wove paper

Verso: graphite on off-white laid paper

Watercolor, white gouache, gold paint, and black ink on off-white wove paper

Graphite on off-white wove paper, mounted to buff wove paper