Set of 4 vintage Philippe Starck design chairs model Costes, 1980s

Dutch description:
Set of 4 vintage Philippe Starck design chairs / dining chairs model Costes, from the 1980s. The condition is good, there are traces of use appropriate to their age. The dimensions are as follows:

Width: 47 cm
Height: 80 cm (back)
Height: 47 cm (seat)
Depth: 54 cm

English description:
Set of 4 vintage Philippe Starck design chairs model Costes, 1980s. The condition is good, there are some traces of use appropriate to its age. The dimensions are as follows:

Width: 47 cm
Height: 80 cm (back rest)
Height: 47 cm (seat)
Depth: 54 cm