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

Tempera, black and violet inks, and gouache over graphite on white wove card

Graphite and colored pencil on paper

Black ink on cream laid paper

Black crayon on paper

Graphite on paper

Graphite and red-orange crayon on paper

Black ink on off-white wove paper, folded

Colored marker and black pen on paper

Monotype in green ink on green paper

Graphite on paper

Black crayon on paper

Colored crayon on paper