Research Project on Economical Apartment Design, 1930: Building type IIb: isometric, steel construction. 1:10

Photomechanical print in black ink on white paper

Photomechanical print with gouache and gelatin silver prints mounted to paper

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

Photomechanical print in ink on translucent paper

Photomechanical print

Photomechanical print in reddish-brown ink on white coated paper

Photomechanical print with wash on paper