Prefabricated Copper Houses, 1931-1932: Window: details (cancelled), 1:1, 1:10

Black marker on paper

Graphite and charcoal on paper

Brown crayon on paper

Ink, gouache, washes, and collage elements on paper

Blue and brown crayon on paper

Black crayon on paper

Graphite on paper

Colored marker on paper

Watercolor on Asian paper

Graphite on paper

Graphite on cream wove paper

Black and red marker on paper