Prefabricated Copper Houses, 1931-1932: Building types 1a and 1b: ground floor plan

Colored crayons on paper

Black crayon on paper

Paper

Black and red marker on paper

Graphite on paper

Blue ink on paper

Crayon on paper

Black crayon on cream wove paper

Graphite on paper

Graphite on tan wove paper

Graphite on paper

Colored marker and black pen on paper