Prefabricated Copper Houses, 1931-1932: Connecting joint: detail, 1:1

Colored marker on paper

Graphite on paper, mounted

Black crayon on paper

Black crayon on paper

Graphite and transparent watercolor on cream wove paper

Graphite on paper

Graphite on paper

Black crayon on paper

Colored and metallic marker on paper

Black crayon on paper

Black marker and black pen on paper

Blue crayon on paper