Ewa Partum was one of the pioneers of the art in the public space in Poland. From the beginning she was interested in the new means of artistic expression, new genres, such as mail art, performance art, photography; also very early she started to create the installations beyond a gallery space. The installation Legalność przestrzeni (Legality of the Space) was constructed in 1971 in the Freedom square in Łódź – the city where the artist was living those days. Partum gathered and put in the one place the collection of dozens of street signs and boards indicating ban of something. The meaning of the gesture was clear: the artist let see the limits of the public spaces and regulations regarding the use of this space in the Polish People’s Republic. The space of the street, at first glance freely accessible and egalitarian, turned out to be severely restricted and under surveillance. The Legality of the Space was an important piece especially in the context of the apparent openness and liberty of the first years of Edward Gierek rules in Poland. The photography of the installation came from the archive of the Artum Foundation.