Prefabricated Copper Houses, 1931-1932: Building type M1: elevations, 1:50

Graphite on paper

Graphite on paper

Black crayon on paper

Graphite and colored pencil on paper

Ink, crayon and watercolor on paper

Pastel on paper

Black crayon on paper

Watercolor on paper

Charcoal on envelope

Black and aqua crayon on paper

Mixed media

Graphite on paper