Research Project on Economical Apartment Design, 1930: Building type IIIb: first through third floor plans, showing heating and electrical installation

Photomechanical print in black ink on white paper

Photomechanical print with wash on paper

Photomechanical print with wash, graphite, and ink on paper

Typewritten text on paper

Photomechanical print in blue and orange inks on paper

Photomechanical print in black ink on off-white card