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

Graphite and watercolor on paper

Black marker on paper

Graphite and colored pencils on tracing paper

Crayon on paper

Black crayon on paper

Black crayon on paper

Graphite with blue, yellow and brown crayon on paper

Graphite on paper

Ink on paper

Black and colored crayons on off-white wove paper

Colored marker on paper

Black crayon on paper