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

Black ink on off-white wove paper

Crayon on paper

Graphite on paper

Watercolor (with wax resist) and graphite on white wove paper

White and black conté crayon on tan cardboard

Graphite on cream wove paper

Graphite on thin off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite and charcoal on off-white wove paper

Graphite and blue ink on yellow lined wove notebook paper

Graphite on blue laid paper

Charcoal and white and purple chalk on brown wove paper