Prefabricated Copper Houses, 1931-1932: Building types L and L1: plans, 1:200

Ink and colored crayons on paper

Black crayon on paper

Colored marker on paper

Red marker on paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Gray marker on paper

Black marker on paper

Graphite and black crayon on paper

Graphite on paper

Graphite and watercolor on paper