Prefabricated Copper Houses, 1931-1932: Building type D2: basement and ground floor plans

Colored marker on paper

Black crayon on paper

Black crayon on paper

Black and colored crayons on paper

Graphite and blue pen on paper

Graphite on paper

Black crayon and graphite on paper

Blue pen and watercolor stains on paper

Black, brown and blue crayon on paper

Graphite on paper

Black crayon on paper and mounted

Graphite on paper