Prefabricated Copper Houses, 1931-1932: Building type K: plans and perspective sketches

Black and red marker on paper

Graphite on paper

Colored marker on paper

Black crayon on paper

Black crayon on paper

Graphite on paper

Black and colored inks on paper

Colored marker and pen on paper, adhesive, and black marker on paper

Black crayon on paper

Graphite on paper, mounted

Colored and metallic marker on paper

Watercolor and black ink on paper