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

Black marker on paper

Black crayon on paper

Watercolor on paper

Graphite and crayon on paper

Black marker on paper

Black and blue marker on paper

Black crayon on paper

Mixed media

Black marker on paper

Black marker on paper

Graphite on paper

Graphite on off-white wove paper