H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg H. Zahlmann, untitled, 2011, concrete and dispersion on wall, Hamburg