The PK12 armchair, created in 1964 and manufactured by E. Kold Christensen, is a perfect example of Kjaerholm’s aspiration to create furniture solely defined by its function. It shows Kjaerholm’s predilection for new materials, especially steel, combined here with leather. The tubular steel is bent to form the legs and the back of the chair, subtly echoing to the form of bentwood chairs.

The PK12 entered production in 1967. The version with leather seat could be ordered with the addition of braided material on the armrest. However, only a dozen of the chairs were produced with the leather braiding, which was technically difficult and correspondingly expensive.