In 1970 Zanotta put the “springy metal seat”, metaphorically named “Mezzadro” into production, that the brothers Achille and Pier Giacomo Castiglioni designed in 1957 (together with the Sella seat, in production since 1983) for the exhibition “Shapes and colours in today’s homes” organized in Villa Olmo in Como. Mezzadro is a loud and clear message of freedom to define the domestic spatial environment.