Prefabricated Copper Houses, 1931-1932: Building types S and S1: roof elevation and sections, 1:10

Charcoal and graphite on paper

Graphite on paper

Graphite and colored pencil on paper

Colored marker on paper

Colored crayons on off-white wove paper

Black crayon on off-white wove paper

Colored marker on paper

Graphite with blue and green crayon on paper

Black crayon on paper

Colored marker on paper

Colored marker and black pen on paper

Black marker on paper