Le Corbusier Set of 2 Black Leather Armchairs Model- LC1 for Cassina, 1970s

Set of 2 armchairs designed by Le Corbusier and manufactured for Cassina, famous Italian furniture manufacture in 1970s period.
Both chairs are original signed. 
Model number- LC1.
Chrome tubular frame and black original leather seating.
The back of the chair are swivel.
 
67 cm H, 60 cm W, 65 cm D.
Seat height: 40 cm.