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

Watercolor on cream wove paper

Oil on green prepared paper

Graphite on pink tracing paper (recto and verso)

Black marker on graph paper

Crayon on paper

Graphite on paper

Graphite on thin off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Black ink with graphite ruling lines on thin ivory laid paper

Graphite on paper

Black crayon on paper and mounted