Research Project on Economical Apartment Design, 1930: Elevation

Black marker on paper

Black marker on paper

Blue marker and black pen on paper

Colored crayons on paper

Colored marker on paper

Colored crayons on paper

Graphite and red colored pencil on cream wove paper

Charcoal and graphite on off-white wove paper, mounted to off-white wove paper

Graphite on paper

Graphite on paper

Graphite on paper

Blue pen on paper