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

Black ink on off-white laid paper, mounted to card

Aqua, black, and pink crayon on paper

Black crayon on paper

Graphite and watercolor on paper

Colored crayons on paper

Graphite on paper

Black marker on paper

Black crayon on paper

Colored marker on paper

Graphite and colored pencil on paper

Graphite on paper

Blue pen on paper