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

Photomechanical print with graphite and wash on paper

Photomechanical print with ink and graphite on paper

Photomechanical print with wash on paper

Photomechanical print with wash on paper

Photomechanical print in burgundy and gold inks on white paper

Typewritten text on paper