Chaise longue à réglage continu, also Chaise longue modèle B 306 à réglage continu or Chaise longue B 306 (later Chaise Longue - LC4, in 1964), is a chaise longue designed by the French designer Charlotte Perriand, who worked in the atelier of the Swiss-French architect Le Corbusier and his partner Pierre Jeanneret. Le Corbusier and Pierre Jeanneret participated in the design process.
See also Grand Confort Le Corbusier's Furniture
References
Further reading Mary McLeod, ed. "Charlotte Perriand: The Art of Living" (New York: Harry A. Abrams, 2003)