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

Red chalk on brown laid paper

Black crayon on paper

Black ink on off-white wove paper

Graphite on paper

Colored paper collage with a clear coating and graphite on white card mounted to gray board

Black crayon or charcoal on paper

Black crayon and graphite on paper

Graphite on paper

Black crayon on paper

Graphite and watercolor on paper

Graphite on paper

Blue, orange and aqua crayon on paper