Prefabricated Copper Houses, 1931-1932: Greenhouse plan, elevation and section, 1:20

Colored marker on paper

Ink and wash on paper

Graphite on paper

Graphite on paper and folded

Colored and metallic marker on paper

Ink, stamps, and spatter paint on paper

Black crayon on paper

Colored marker on paper

Black and red marker on paper

Black and colored crayons on off-white wove paper

Black marker on paper

Graphite and colored crayons on paper