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

Red-orange crayon and graphite on off-white wove paper

Black ink over graphite on off-white wove paper

Black ink over graphite on cream laid paper

Crayon on paper

Black ink and black crayon over graphite on off-white laid paper

Graphite on paper

Graphite on paper

Graphite on thin off-white wove paper

Graphite on off-white wove paper

Charcoal on off-white wove paper

Graphite on oiled buff laid paper

Red crayon on off-white wove notebook paper