Prefabricated Copper Houses, 1931-1932: Ground floor plan, 1:50

Red crayon on paper

Purple crayon on paper

Gouache, watercolor, graphite, and colored pencil on paper, double-sided

Black crayon on paper

Colored marker on paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Recto: transparent and opaque watercolor, black and blue inks, graphite, tea and oil on white wove paper; verso: transparent watercolor and tea on white wove paper

Graphite on paper

Graphite on paper

Colored marker and black ink on paper