Prefabricated Copper Houses, 1931-1932: Building types M1 and M2: elevations showing three different possibilities for the roofing of a veranda, 1:50

Colored crayons on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Colored marker on paper

Black, red, and blue marker on paper

Black marker on paper

Ink and colored crayons ; colored crayons on paper

Blue marker on paper

Black crayon on paper

Graphite, colored pencil, white chalk, and charcoal on paper

Black marker on paper