De Sede DS-600 "Non-Stop" sofa

Design: Ueli Berger, Eleanora Peduzzi-Riva, Hans Ulrich and Klaus Vogt in 1972
Manufacturer: De Sede, Switzerland. 
This iconic modular sofa consist of 19 elements and one De Sede ottoman with matching upholstery. 
Chocolate brown leather with dark brown felt and assembled with hinges and zips that are not visible.
H 71 cm x B 26 x D 98. Sh +/- 40 cm (one element)
Condition sofa: upholstery in superb condition and felt with normal traces of use.  Recently professional partly renewed. Condition Ottoman: upholstery in superb condition and base shows signs of wear.