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

Charcoal on tan wove paper mounted to board

Black and blue pen and orange marker on paper

Black crayon and graphite on paper

Black crayon on paper

Paper

Stamp ink on paper

Black marker on paper

Paper with color transfer

Graphite on paper

Opaque and transparent watercolor, graphite, and black ink on cream card

Black crayon on paper

Black crayon on paper