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

Photomechanical print with yellow wash on paper

Photomechanical print with gouache on paper

Photomechanical print with wash on paper

Photomechanical print in black ink on white paper

Photomechanical print in colored inks on white paper

Photomechanical print with graphite and colored pencil on paper