Prefabricated Copper Houses, 1931-1932: Building types S, S1: door elevations and sections, 1:10

Graphite on paper

Watercolor and stamp ink on paper

Black marker on paper

Blue and yellow crayon on paper

Black marker on paper

Paper

Ink on vellum

Black and red marker on paper

Blue, orange and aqua crayon on paper

Blue marker and white opaque watercolor on paper

Graphite on paper

Charcoal, chalk, oil on paper