Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Plan and elevation

Watercolor on heavy cream wove paper

Watercolor on paper

Graphite on paper

Crayon on paper

Watercolor on off-white wove paper

Colored crayons on paper and mounted

Mixed media on cardboard

Black ink, blue crayon, white-out and touches of red ink on pink squared wove paper

Transparent and opaque watercolor over graphite on off-white wove paper mounted on cardboard

Graphite, black crayon, and white chalk on blue-gray laid paper

Graphite on heavy weight, white card stock (Strathmore Bristol board)

Graphite on paper