Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: South elevation, 1:200

Graphite and black crayon with red watercolor on off-white wove paper

Black ink on off-white wove paper

Black ink on off-white wove paper

Graphite on off-white wove paper

Watercolor on paper

Black and grey wash on prepared white wove paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Transparent and opaque watercolor, pastel, and graphite on heavy off-white wove paper

Graphite on brown wove paper

Charcoal, white pencil, red watercolor (or ink), white gouache on off-white wove paper

Black ink and watercolor on white laid paper