Prefabricated Copper Houses, 1931-1932: Building types S and S1: roof elevation and sections, 1:10

Black ink on cardboard

Graphite

Graphite on paper

Graphite on paper

Colored marker on paper

Ink on paper

Graphite on paper

Black crayon on paper

Colored crayon on paper

Graphite on paper

Black crayon on paper

Black crayon on paper