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

Black crayon on paper

Black crayon on paper

Graphite on paper

Black ink on off-white wove paper

Graphite on paper

Graphite with black and blue crayon on paper

Black and red marker on paper

Black crayon on paper

Black crayon on paper

Colored marker on paper

Graphite on paper and mounted

Black and colored crayons on paper