Prefabricated Copper Houses, 1931-1932: Building type K: perspective sketch

Graphite on tan wove paper

Black crayon on paper

Graphite on paper

Graphite on cream wove paper

Colored marker on paper

Graphite on paper

Black crayon on paper

Ink, red wash, and gray gouache on paper

Graphite on tan wove paper

Graphite on paper

Blue pen on paper

Colored marker on paper