Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: East and north elevations, 1:200

Watercolor and white gouache on off-white wove paper

Watercolor on cream wove paper

Brown cardboard sketchbook with drawings in black ink on off-white wove paper

Watercolor over graphite on off-white wove paper

Ink on paper

Watercolor and white gouache over graphite on heavy beige wove paper

Black ink and graphite on off-white wove graph paper

Watercolor on off-white wove paper

Watercolor over graphite on cream wove paper

Graphite on off-white wove paper

Charcoal on blue laid paper

Black ink on off-white wove paper