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

photomechanical print with yellow wash on cream wove paper, mounted overall to gray board

Photomechanical print in black and brown inks on white paper

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

Photomechanical print with wash on paper

Photomechanical print with red ink and wash on paper

Photomechanical print with typewritten text on paper

Photomechanical print in orange and blue inks on white paper

Photomechanical print in red and black inks on white paper

Photomechanical print with ink and wash on paper

Photomechanical print in orange and blue inks on cream paper

Photomechanical print with graphite and wash on paper