Prefabricated Copper Houses, 1931-1932: Building type D1: basement and ground floor plans

Graphite on paper

Charcoal on paper

Black and aqua crayon on paper

Black marker on paper

Black marker on paper

Blue marker and graphite on paper

Black ink and graphite on off-white wove paper

Colored marker and black pen on paper

Green crayon on paper

Colored marker on paper

Graphite on paper

Black marker on paper, staples, and gray marker on paper