Prefabricated Copper Houses, 1931-1932: Building type S: wall framing details 1:10

Graphite on paper

Graphite and colored crayons on paper

Graphite on paper

Graphite on paper

Black crayon on paper

Black ink on off-white laid paper

Colored marker on paper

Black ink on tan wove paper

Watercolor on paper

Graphite ; graphite and blue crayon on paper

Watercolor on paper

Colored crayon on tan wove paper