Prefabricated Copper Houses, 1931-1932: Wall connectors: section, 1:1, 1:10

Photomechanical print in black ink on off-white card

Photomechanical print in orange and dark blue inks on paper

Photomechanical print with ink and blue wash on paper

Photomechanical print

Photomechanical print with wash on paper

Photomechanical print in red ink on blue paper

Photomechanical print in colored inks on white paper