Prefabricated Copper Houses, 1931-1932: Building types S and S1: section, 1:20

Blue, green and black crayon on paper

Graphite on paper

Graphite on paper

Black crayon on beige wove paper

Colored marker on paper

Graphite on off-white wove paper

Ink, wash, and graphite on paper

Paper

Graphite on paper and mounted

Black crayon on paper

Black chalk on cream wove paper

Graphite and crayon on paper