Research Project on Economical Apartment Design, 1930: Building type IIIb: ground floor plan, 1:50

Photomechanical print in black ink on white paper

Photomechanical print with graphite, crayon and colored washes on paper

Photomechanical print in colored inks on white paper

Graphite on paper

Photomechanical print with colored pencil on paper

Photomechanical print with ink and graphite on paper

Typewritten text on paper