Pair of 50's 70's designer fiberglass chairs

Superb pair of designer chairs from the 50s-70s. They are absolutely incredible! Beige - pale green color Despite my research, I have not found any clues to attribute them to a great designer of the time, but I think they are most likely the work of a renowned designer. These chairs are made of fiberglass. According to the heirs of the former owner (who is unfortunately no longer with us), they were purchased in the 80s from an antique dealer located around the Hôtel des Ventes, Drouot. Dimensions: • Height: 81.3 cm • Depth: 62.8 cm • Seat height: 49.8 cm They are sold as is, that is to say: • In very good general condition. • With their original lacquer. • However, they have some scratches and slight lack of lacquer.