HANS J WEGNER, a "JH512" folding chair for Johannes Hansen, 1940-50's.
Oak and cane, maker's mark, height 75 cm.
Wear. Damages.
Grete Jalk [ed.]. "40 Years of Danish Furniture Design", Vol. 3, pp. 98-99.
Noritsugu Oda: "Danish Chairs", p. 110.
The model was deisgned in 1949.
The folding chair was a recurrent theme of Hans J. Wegner since he in 1946 designed his first folding chair. 
When Wegner three years later presented the easy chair JH 512, it was alongside several other iconic furniture at the cabinetmakers guild exhibition in 1949. A year known to be the symbol of his international breaktrough.
The folding chair was created from a social awareness that many people lived in small flats, which required flexible interior designs. The chair was therefore designed to be folded, hung on the wall and taken down when needed.