Prefabricated Copper Houses, 1931-1932: Building type D2: basement and ground floor plans

Black marker on paper

Graphite on paper

Black marker on paper and adhesive on paper

Graphite on paper

Black crayon on paper

Black crayon on paper

Colored crayon on paper

Black marker on paper

Graphite and blue crayon on paper

Black marker on paper

Graphite on paper

Watercolor and black ink on paper