Brutalist razorback rattan dining chairs

Brutalist dining chairs. these dining chairs were made in belgium in the 80s. They have the typical brutalist shape from those years. They are in very nice and solid condition with the original rattan seating. 
 
This style of chairs is called a "Razorback" dining chair
 
Measurements: 
Width: 56cm
Depth: 44cm
Height: 90cm
Seating height: 44cm