Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Perspective sketch of entrance

Graphite, with some stumping, on cream wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Transparent and opaque watercolor, oil paint (?), colored pencil and graphite on paper board, mounted overall to blue-coated paper covered paper board

Black, blue and brown crayon on paper

Charcoal and purple and white chalk on brown wove paper

Graphite on paper

Black ink and charcoal on cream laid paper

Charcoal on off-white laid paper

Paper

Black ink on off-white wove paper