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

Colored marker and blue pen on paper

Colored marker on paper

Black and red marker on paper

Colored marker on paper

Graphite on paper

Black crayon on paper

Blue and green marker on translucent film and paper

Black marker on paper

Colored marker on paper

Graphite and colored pencil on paper

Blue crayon on paper

Graphite on paper