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

Watercolor over graphite on off-white wove paper

Gouache on off-white wove paper

Black crayon on cream wove paper mounted overall to off-white cardboard

Watercolor over graphite on off-white wove paper

Black ink on faded brown Japanese paper

Paper bound sketchbook

Watercolor and graphite on heavy off-white wove paper

Graphite and blue colored pencil on cream colored paper

Graphite on off-white wove paper

Graphite, black ball-point ink, and correction fluid on white wove paper

Charcoal on beige laid paper

Black crayon and graphite on cream wove paper