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

Graphite on off-white wove paper

Oil on paper

Graphite on paper

Black crayon on paper

Black crayon and ink on paper

Oil on white prepared paper

Oil on tracing paper

Charcoal and white and purple chalk on brown wove paper

Black chalk on tracing paper

Graphite on off-white wove paper

Graphite on paper

Watercolor and white gouache on off-white wove paper