Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Balcony: sections, 1:10

Graphite on cream laid paper

Black crayon on paper

Colored pencil and graphite on white wove paper

Charcoal on off-white laid paper

Watercolor and graphite on off-white wove paper

Colored crayons on paper

Black ink and graphite on tracing paper with acetate overlays

Watercolor on off-white wove paper

Watercolor on off-white wove paper

Graphite, colored crayons and felt tip ink on white wove paper

Watercolor over graphite on thin off-white wove paper

Charcoal on blue laid paper, faded