Prefabricated Copper Houses, 1931-1932: Building types S and S1: details of roof and drainage systems, 1:10

Black marker on paper

Graphite on paper

Black crayon on paper

Collage of cut and painted papers on off-white wove paper

Colored crayons on paper

Colored marker on paper

Graphite on paper

Graphite on paper

Graphite on paper

Graphite on paper

Colored marker and blue pen on paper

Black and blue marker on paper