The 811 Chair, designed by Josef Hoffmann and produced by Thonet, was introduced in the 1920s. It features a caned seat and backrest set within a curved, bentwood frame, a method Thonet was renowned for perfecting. Josef Hoffmann, an influential Austrian architect and designer, was a key figure in the Vienna Secession, advocating for a break from traditional styles towards more individualistic expressions in art and design.