Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Roof and gutter details, 1:10

Graphite on paper

Black ink on off-white wove paper

Black ink and graphite on cream wove paper

Oil, graphite and turpentine on off-white wove paper, mounted to painted board

Charcoal on blue-flecked beige laid paper

Watercolor over graphite on cream wove paper

White paint (spray-applied) and black ink on off-white wove paper

Black ink on tan wove paper

Black ink, gray wash, and graphite on off-white laid paper

Watercolor over graphite on darkened off-white wove paper

Graphite on paper

Oil and crayon on wove paper