Research Project on Economical Apartment Design, 1930: Plans of floors with 11, 12, and 22 apartments

Graphite on paper

Graphite on paper

Graphite on paper

Colored and metallic marker on paper

Black and blue crayon on paper

Graphite and colored crayons on cream wove paper

Black ink on translucent vellum paper

Watercolor on paper

Black crayon on paper and mounted

Graphite on paper

Colored marker and green pen on paper

Black ink on paper