Research Project on Economical Apartment Design, 1930: Building type IIIb: ground floor plan, 1:50

Photomechanical print with graphite and applied type on paper

Photomechanical print with graphite and red ink on paper

Photomechanical print in red ink on blue paper

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

Photomechanical print with colored pencil on paper

Photomechanical print in red and black inks on white paper