Prefabricated Copper Houses, 1931-1932: Stairs and base: details, 1:20

Photomechanical print with wash on paper

Photomechanical print with wash and spatter paint on paper

Photomechanical print in black ink on off-white card

Photomechanical print in red, black and blue inks on paper

Photomechanical print in black ink on off-white card and sugar in plastic sleeve

Photomechanical print with wash on paper

Photomechanical print with colored pencil on paper

Photomechanical print in red and black inks on white paper