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

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

Watercolor over graphite on off-white wove paper; verso: graphite

Graphite powder and incised lines on Japanese paper

Black colored pencil on tan wove paper; verso: black colored pcl. & black crayon

Black ink and graphite on off-white wove paper

Graphite on paper

Black ink on tan wove paper

Graphite on off-white wove paper

Gouache on cream wove paper; verso: black crayon and pastel

Black ink on white wove paper

Black chalk and graphite on off-white laid paper

Watercolor over graphite on off-white laid paper