Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Balconies: plan, section, and isometric, 1:10

Black ink on thin off-white wove paper

Graphite on paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Black ink on off-white wove paper

Watercolor over graphite on off-white wove paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Watercolor and red ink lines on white wove paper

Graphite on paper

Graphite on cream laid paper

Graphite (drawn on both sides) on translucent cream wove paper

Paper bound sketchbook

Colored pencil and graphite on white wove paper