19,45 metri di metallo sotto forma di scala (la caduta di Pinelli)

Galvanized metal;
cm 130x46x287

19.45 meters of zinc plated metal bars have been used to build a foldable ladder. 

The measure of the ladder is like the height of the fourth floor office at the police station in Via Fatebenefratelli in Milano. From where anarchist Pinelli fell from.