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

Charcoal on tan wove paper, squared

Black ink and gray wash on cream laid paper

Black ink on tracing paper

Charcoal on blue laid paper

Colored pencil and graphite on cream wove paper

Oil on off-white wove paper

Black crayon on paper

Black chalk and graphite on off-white wove paper; verso: graphite and charcoal

Graphite on paper

Graphite on paper

Graphite on pink laid? paper

Crayon on paper