Achille Castiglioni soon became one of the most successful and versatile industrial designers in Italy and also obtained international reputation. He was known to sometimes recompose existing products in a surprising way. Two of his lamps, the floor lamp Toio - headlights mounted on a steel rod - and the hanging lamp Parentesi, were included in the collection of the New York Museum of Modern Art. On the occasion of the XI. Milan Triennale in 1957 Achille Castiglioni and his brothers introduced their tractor seat "Mezzadro". They used a commercially available tractor seat and fastened it with a wing nut on a free-swinging band steel sheet. To stabilize, they used a wooden cross, resembling a ladder rung.