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

Photomechanical print in blue, red and gray inks on white paper

Photomechanical print with graphite and colored pencil on paper

Photomechanical print with wash on paper

Photomechanical print with colored pencil on paper

Photomechanical print with graphite, crayon and colored washes on paper