In 2017, an exhibition at the National Gallery in Prague revealed the preparation of the whole piece. The exhibition symbolically related to the artwork through traffic signs. However, the central piece, the mosaic itself, was situated outside the gallery. The exhibited artifacts were abstracted maps and relics of long-term interventions. Other artwork received its form through continuous replacement of material from the gallery by material from the street. The guerrilla methods were simultaneously conditioned by the mutual permeability between the institution and the street and by their living relationship. An example is offered by the 3080 3081 transactions ↗.