Research Project on Economical Apartment Design, 1930: Plans of floors with 3 or 4 apartments

Colored marker on paper

Graphite on paper

Black, aqua, and blue crayon on paper

Colored marker on paper

Graphite and colored pencil on paper

Aqua, yellow and orange crayon on paper

Graphite on paper

Black and metallic marker on paper

Black crayon on tan wove paper

Colored crayons on paper

Colored marker on paper

Black ink on Japanese paper