Recreation and Cultural Buildings, Berlin-Tiergarten, 1929-1930: Tunnel: plan and section, 1:1000, 1:100

Photomechanical print with red ink and wash on paper

Photomechanical print in orange and blue inks on white paper

Photomechanical print in red and gold inks on translucent paper

Photomechanical print with colored pencil on paper

Photomechanical print in black and brown inks on white paper

Photomechanical print with red ink and wash on paper

photomechanical print with colored washes, white gouache, and graphite on paper, splatter-painted