Josef Hoffmann (Brtnice 1870 - Vienna 1956) Pair of small armchairs model "423". Execution by Jacob & Josef Kohn, Austria, early 20th century. Solid beech wood frame, seat and back covered in original green leather of the period. Fire-marked under the seat. (defects) Literature Catalogo Jacob & Josef Kohn, Vienna, 1908, p. 2; Il mobile moderno. Gebruder Thonet Vienna, a cura di G. Renzi, Jacob & Josef Kohn, Silvana, Cinisello Balsamo 2008, pp. 226-227