Prefabricated Copper Houses, 1931-1932: Building types S, S1: window details, 1:1

Black marker on paper

Graphite on paper

Black ink and graphite on modern laid off-white paper

Black and metallic marker on paper

Black ink on paper

Black and colored crayons on paper

Colored crayons on paper

Black crayon on paper

Graphite on paper

Graphite on paper, mounted

Colored crayons on paper

Graphite on paper