Prefabricated Copper Houses, 1931-1932: Building type K2: plans

Black ink on cream wove paper

Graphite on paper

Black crayon or charcoal on paper

Colored crayon on paper

Colored marker on paper

Colored marker on paper

Graphite on paper

Black ink on paper

Graphite, charcoal, color pencil, wash on brown wove paper

Black marker on paper

Black crayon on paper

Black and purple crayon on paper