Designed by Michael Thonet in 1869 and later refined by August Thonet, this chair is now produced by the Czech brand TON. Continuing Thonet’s core technique of steam-bending solid wood, the chair features a single piece of beech wood that is softened and bent into a seamless, integrated structure comprising the backrest and armrests, representing the pinnacle of bentwood craftsmanship. Le Corbusier featured it extensively in his iconic architectural works, such as the Pavillon de l’Esprit Nouveau in Paris (1925) and the Weissenhof Housing Estate (1927), establishing it as an icon of modernist design. It serves as a bridge between bentwood furniture and modernist design, demonstrating that traditional craftsmanship can meet modern functional and aesthetic demands. Still produced and reissued worldwide today, this classic design has spanned over 150 years and is held in the collections of numerous museums.