Gio Ponti, Two armchairs; Wood structure and skai, and alcantara covers., Designed for the furnishings of the Hotel Parco dei Principi in Rome Cassina, Italy, 1964, W. 64 - D. 80 - H. 70 Cm, Literature, G. Bosoni, Made in Cassina, p. 157, Skira, 2008