Mario BELLINI (1935) - Set of four "Lira & Liuto" armchairs for Cassina, designed in 1989. Plastic frame covered in turtle-dove grey/brown leather. Publisher's mark stamped on the leather "H-9 Cassina C". H. 77 x 54 x 47 cm Traces of wear on the leather at the feet. Chairs designed by Mario Bellini, a major figure in Italian design in the second half of the 20th century, renowned for his sculptural approach and his attention to the relationship between form, function and material. The "Lira and Liuto" models are distinguished by their elegant, structured lines, whose nomenclature evokes the tension and harmony of stringed instruments. The design of the legs and the balance of the proportions reflect the precise formal research characteristic of Bellini's work.