Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Site plan, 1:200

Graphite on paper

Black ink, charcoal, and watercolor pencil on cream laid paper

Watercolor and graphite on off-white wove paper

Charcoal on off-white wove paper (recto and verso)

Charcoal on paper

Mixed media on paper

Graphite on off-white wove paper

Black, blue and green crayon on paper

Watercolor on cream wove paper

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

Charcoal on off-white laid paper

Black ink on off-white wove paper