Research Project on Economical Apartment Design, 1930: Building type IIIb: drainage system

Photomechanical print with colored pencil on paper

Photomechanical print with ink, wash, and applied type on paper

Photomechanical print in orange and blue inks on paper

Typewritten text on paper

Photomechanical print with colored pencil on paper

Photomechanical print with colored washes and collage elements on paper

Typewritten text on paper