Behind every piece designed by Achille Castiglioni is a story. In the case of the Mezzadro stool by Achille and his brother Pier Giacomo, the idea was inspired by the ready-made sculpture of the early 20th century artist Marcel Duchamp overlaid with their interest in the modernisation of Italian agricultural equipment. Using an industrial tractor seat, a piece of flat steel, an off-the-shelf bicycle screw and a length of solid beech, Mezzadro is reduced to four essential elements that when brought together are both playful and functional. First designed in 1957, it was not until 1983 that Mezzadro went into production, after Achille persuaded Italian manufacturer Zanotta to reissue the original design.