Research Project on Economical Apartment Design, 1930: Building type IIb: first-third floor plans, showing heating and electrical installation, 1:50

photomechanical print with colored and black inks, wash, and applied type on paper

Photomechanical print in blue and orange inks on paper

Photomechanical print with applied type on paper

Photomechanical print in orange and black inks on white paper

Photomechanical print in gold, dark blue and burgundy inks on paper

Photomechanical print in colored inks on white wove paper

Typewritten text on paper

Photomechanical print with yellow wash on paper