A cut and folded sheet of metal, bare, free from decoration. It distinguishes itself in composition, in the freedom of combination. The result is an incomplete grille, broken up by cuts which lighten the perception. It is the careful work of a metalworker, the leftovers of mechanical processing, a snapshot of abandoned industry between brutal aesthetics and poetry. Z-shelf, together with the 3 Nuns stool, and the Glider sofa, is part of Americana, a heterogeneous collection, which, through the use of steel, celebrates conceptual pieces as an expression of the practice of design, while rejecting established conventions and labelling.