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

Pink and yellow crayon on paper

Graphite on paper envelope

Black marker on paper

Colored marker on paper

Graphite and transparent watercolor on cream wove paper

Colored marker and black pen on paper

Black crayon on paper

Graphite on paper

Graphite and colored crayons on paper

Graphite on cream wove paper

Black pencil on paper

Graphite and colored pencil on paper