Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Roof and gutter details, 1:10

Oil on white prepared paper

Watercolor over graphite on blue laid paper

Watercolor over graphite on two pieces of white wove paper

Graphite on off-white laid paper

Graphite on paper

Colored crayons on paper

Graphite on off-white wove paper

Watercolor and graphite on heavy off-white wove paper

Graphite on off-white wove paper

Sketchbook with light brown cloth covered cardboard covers

Graphite on buff wove paper

Graphite on off-white wove paper