Prefabricated Copper Houses, 1931-1932: Isometric, 1:100

Ink on paper

Black crayon on paper

Graphite with blue and brown crayon on paper

Black marker on paper

Black and red marker on paper

Black crayon on paper

Black and colored crayons on paper

Black and red marker and black pen on paper

Black crayon on paper

Graphite and colored pencil on paper

Ink, colored wash, and applied type on paper

Ink on paper