Prefabricated Copper Houses, 1931-1932: Building type K2: basement and ground floor plans

Watercolor on thick off white wove paper

Graphite on paper

Colored marker on paper

Ink on paper

Black and colored crayon on cream wove paper

Black and green crayon ; black crayon on paper

Graphite on paper, mounted

Graphite on off-white wove paper

Graphite, partially erased and rubbed, on cream wove paper

Black and red marker on paper

Ink on paper

Ink on paper