Prefabricated Copper Houses, 1931-1932: Building type K: two plans

Green crayon on paper

Graphite on paper

Black marker on paper

Pink and yellow crayon on paper

Graphite on paper

Ink on paper

Black chalk on cream wove paper

Blue pen on paper

Black crayon on paper

Colored crayons on paper and mounted

Black and aqua marker on paper

Black pen on ruled paper, adhesive, and black marker on paper