Research Project on Economical Apartment Design, 1930: Building type IIb: section showing plumbing and gas installation, 1:50

Typewritten text on paper

Photomechanical print in black and purple inks on white paper

Photomechanical print in red and black inks on white paper

Photomechanical print in blue, red and gray inks on white paper

Photomechanical print with applied type on paper

Photomechanical print in red and black inks on paper

Photomechanical print with colored pencil on paper