Research Project on Economical Apartment Design, 1930: IIb: plans, elevations, and section

Colored and metallic marker on paper

Black marker on paper

Black crayon on paper

Colored marker and graphite on paper

Ink and blue watercolor on paper

Dark green crayon on paper

Black and green crayon on paper

Black crayon on paper

Graphite on off-white laid paper

Graphite, colored pencil, and watercolor on paper

Colored crayons on paper

Graphite on paper with irregular right and bottom edge