Rare Desede / Nienkamper dining chairs

Ultra rare set of 6 dining chairs made by Desede and designed by Nienkamper.
These chairs come out of an high-end 1970's hotel. They feature a beautiful patinated leather and lovely cross stitches under the armrests. 
 
The frame is in a used state. if so desired they can be repainted. The leather is in good condition but you can see and feel the age. 
 
 
These chairs only have one reference on the internet.  We are still busy try to find more info about the chairs.