CH20 Elbow ChairThe stackable Carl Hansen & Sn CH20 Elbow Chair was designed in 1956 by Hans J. Wegner. After crafting two prototypes, he set the production intensive chair design aside in his archives, where it remained for nearly half a century until it was brought back to life in 2005 and is now an award winning classic. The CH20 Chairs steam bentbackrest, crafted from a single piece of solid wood, provides good supportand enables a variety of sitting positions.