Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: East elevation and section, 1:100

Watercolor on off-white wove paper

Black and blue ballpoint ink and graphite on off-white wove paper

Turpentine wash with oil over graphite on off-white wove paper

Black fiber-tip ink on buff wove paper, mounted to fabric-covered cardboard

Graphite on paper

Graphite on paper

C-print (magenta and yellow color separation) with ball-point ink grid, mounted on foam-core

Black conté crayon on ivory tracing paper

Charcoal on cream laid paper

Gouache on acetate film affixed to cardboard

Black ink on off-white wove paper (recto and verso)

Graphite on thin off-white wove paper