Research Project on Economical Apartment Design, 1930: Building type IIIb: ground floor plan showing plumbing and gas installation

Photomechanical print in orange and blue inks on white paper

Photomechanical print with colored ink, wash, and applied type on paper

Photomechanical print with ink, graphite and wash on paper

Photomechanical print with graphite and crayon on paper

Photomechanical print in black ink on white wove paper

Photomechanical print with graphite and colored pencil on paper

Photomechanical print in black ink on white paper

Photomechanical print with colored pencil on paper

Photomechanical print in red and black inks on white paper