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

Watercolor, black ink, and graphite on beige wove paper

Black marker on paper

Orange marker and black pen on paper

Graphite on paper

Graphite on paper

Colored marker on paper

Colored crayons on paper

Graphite on paper

Colored marker on paper

Colored marker on paper

Graphite on paper

Red, orange, and blue marker on paper