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

Watercolor over graphite on heavy off-white wove paper

Tempera on heavy buff wove paper

Black crayon on cream wove paper; verso: red and black crayon

Graphite on off-white wove paper

Charcoal on blue-green wove paper

Graphite on cardboard

Graphite on paper

Ink on paper

Gouache and black crayon (?) on cream wove paper

Graphite on off-white wove paper

Watercolor and graphite on cream wove paper

Oil over graphite on off-white wove paper