Prefabricated Copper Houses, 1931-1932: Building types S and S1: north elevations, 1:20

Colored marker on paper

Graphite on paper

Graphite on paper

Black marker on paper

Graphite on paper

Graphite on paper

Colored marker and blue pen on paper

Black and red marker and black pen on paper

Paper

Graphite on paper

Black and red marker on paper

Green, blue, and violet crayon on paper