Prefabricated Copper Houses, 1931-1932: Building type K1: elevations, 1:50

Graphite with colored crayons on paper

Graphite on paper

Black pen and red marker on paper

Graphite on paper

Black marker on paper

Graphite on paper

Black crayon on off-white wove paper

Opaque and transparent watercolor, black ink, and graphite on off-white wove paper

Black pen on paper

Graphite, watercolor and crayon on paper

Pastel with charcoal on paper

Graphite on paper