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

Paper

Colored marker 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

Colored marker and adhesive stickers on paper

Colored marker and black ink on paper

Black crayon on paper

Black ink on white laid paper

Charcoal on paper

Black ink on paper

Graphite on paper

Aqua crayon on paper

Black and colored crayons on off-white wove paper