Prefabricated Copper Houses, 1931-1932: Building type S: foundation plan, 1:20

Black marker and black and blue pen on paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Flower stains on paper

Black crayon on paper

Colored marker and blue ink on paper

Graphite and ink on paper

Watercolor, black ink, and black crayon on cream wove paper

Ballpoint ink with traces of red and blue pencil on off-white wove paper

Graphite on paper

Black crayon on tan wove paper