Prefabricated Copper Houses, 1931-1932: Building type K: plans and perspective sketches

Blue crayon on paper

Graphite and watercolor on paper

Black, red, and blue marker on paper

Graphite on paper

Graphite on paper

Aqua crayon on paper

Colored and metallic marker and black pen on paper

Graphite on paper

Watercolor and graphite, white gouache, collage element, on cream wove paper

Graphite on paper

Colored marker on paper

Charcoal on brown wove paper