Pair of tuna chairs n 19 stamped tuna

Thonet chair n 19 in curved wood. Seat height 47 high backrest 85. Width 45 total depth 53. These chairs are in their juice so not in an irreproachable condition. The cannages are a little relaxed. Some screws are not original. The wood is split on the rings of the backrests. A few bites. The structures are solid the feet do not move. Stamped tuna and traces of labels.