Brutalist rocking chair

What a chair, this is a robust rocking chair. This was made in the 80s in Germany.It is a good example of German quality of that time. It has a heavy frame with leather straps. The chair is in nice condition with the normal signs of age. 
 
Measurements: 
Width: 61cm
Depth: 80cm
Height: 110cm
Seating height: 50cm