Chromium-plated steel stem, lacquered metal tractor seat, kiln-dried beech footrest. With Pier Giacomo Castiglioni. The seat from a tractor, designed in the early 20th century and still in production, becomes a seat to be used at home. The seat is fastened to the stem (also a tractor part, but turned the opposite direction) with a large bicycle wingnut, and the construction is made stable by a wooden crossbar (which in the prototype came from a demolished ship). Mezzadro means "sharecropper".