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

Photomechanical print in black and red inks on white paper

Photomechanical print with colored pencil on paper

Photomechanical print with wash on paper

Photomechanical print in black ink on white paper

Typewritten text on paper

Photomechanical print in green and gold inks on paper

Photomechanical print with red ink and wash on paper

Photomechanical print with ink, wash, and gouache on paper

Black ink on off-white card

Photomechanical print with wash on paper