Research Project on Economical Apartment Design, 1930: Building type IIb, drainage system: plan, 1:50

Photomechanical print in blue ink on white paper

Photomechanical print in colored inks on white wove paper

Black ink on off-white card

Photomechanical print with applied type on paper

Photomechanical print in brown ink on paper

Photomechanical print with wash and applied type on paper

Photomechanical print in black ink on white paper