Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Sketch of detail

Graphite and marker on white wove translucent paper

Graphite on paper

Acrylic on buff wove paper

Black and colored chalks on brown laid paper

Graphite on paper

Graphite and black crayon with touches of white chalk on tracing paper

Graphite on tan wove paper

Graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Gouache and black ink on brown wove paper

Watercolor

Graphite on cream wove paper