Vintage Coquillage chair by Pierre Guariche for Meurop, Belgium 1960s

Design chair, model Coquillage, designed by the Frenchman Pierre Guariche and produced by the Belgian Meurop, 1960s. Orange plastic shell (polypropylene) with a black enamelled round steel frame. Good vintage condition. Light signs of use on the plastic shell. Slight corrosion on the steel fame (see photos).