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

Photomechanical print in colored inks on white wove paper

Photomechanical print with colored pencil on paper

Photomechanical print in black ink on light blue paper

Photomechanical print with applied type on paper

Photomechanical print with ink and wash on paper

Typewritten text on paper