Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Balcony: sections, 1:10

Watercolor on heavy buff wove paper

Acrylic, graphite, and computer print-out on off-white wove paper

Gouache and graphite on white Fome-Cor

Mixed media on paper

Watercolor and white gouache over graphite on off-white wove paper

Black and colored crayon on off-white wove paper

Black ink on off-white wove paper

Graphite on paper

Colored crayons on paper

Black, orange and purple crayon on paper

Graphite on white wove paper

Watercolor on off-white Japanese paper