Set of 8 castelbajac chairs

Set of 8 chairs by designer jcdb, jean charles de castelbajac, two-tone wood. The seats are made of red imitation leather. This model is uncommon for sale. They are all signed under the seat. Did they participate in the exhibition "no taste for bad taste", I have no confirmation... Height of the seat: 47cm. They are all 8 in use, with a little wear on the seat of one of them, only on the color, not on the imitation.