Prefabricated Copper Houses, 1931-1932: Building type K1: basement and ground floor plans

Black marker on paper

Graphite on paper

Graphite on paper

Graphite on paper

Graphite and colored crayons on paper

Graphite on paper

Black ink, white gouache, and watercolor over color lithograph(?)

Colored marker on paper

Graphite on paper, mounted

Colored crayons on paper

Graphite on paper

Black and blue crayon on paper