Prefabricated Copper Houses, 1931-1932: Building type M1: plans and perspective sketches

Colored marker on paper

Graphite on paper

Ink and wash on paper

Paper beneath inserted photocopies

Graphite on paper

Brown and green crayon on paper

Black marker on paper

Colored marker on paper

Colored marker on paper

Ink and wash on paper

Graphite and transparent watercolor on cream laid paper

Watercolor on thick cream wove paper