Gio ponti designed this armchair specifically for the hotel royal in naples. The "model 820" was manufactured by cassina in the 1950s. The armchair has a wooden frame and is upholstered with fabric. It should be noted that the armchair needs a new cover. bibliography: domus n°325, december 1956 ref: il mobile italiano degli anni 1940-1950. M. Maino and i. De guttry. Bari 1992. P.151. i have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution