Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Window frame schedule, 1:100

Graphite and charcoal on paper

Black ink and gouache on off-white wove paper

Black ink on off-white wove paper

Turpentine wash with oil on off-white wove rag paper

Watercolor and graphite on white wove paper

Red and black chalk on heavy off-white wove paper

Graphite on off-white wove paper

Crayon on paper

Graphite on off-white wove paper

Oil and alkyd on board

Graphite on cardboard

Graphite on darkened off-white wove paper