Hotel Parco dei Principi, Rome, 1961–64. View of the lobby. The walls are covered with “Grass Cloth” wallpaper by Braendli and teal-green “Sigmulto” stucco by Sigma. The space is furnished with armchairs and sofas (model 899) and coffee tables produced by Cassina. Wall sconces and ceiling lights were designed by Ponti with Emanuele Ponzio, realized by Candle, 1960. The hexagonal bronze window frames were manufactured by the Del Vecchio factory of Fano. Photo © Gio Ponti Archives/ Historical Archive of Ponti’s Heirs.