Research Project on Economical Apartment Design, 1930: Section, 1:50

Charcoal on off-white wove paper

Colored marker on paper

Red and blue pen on paper

Black marker on paper

Colored marker on paper

Graphite on paper

Black and red inks on brown wove paper

Colored pencil, colored crayon, red and black inks, graphite, on tan wove paper

Green, brown, and orange crayon on paper

Graphite on paper with part cut away

Ink on paper

Colored crayons ; black crayon on paper