Set of 4 vintage folding chairs

Beautiful set of 4 vintage antique folding chairs dating from the 60s and 70s. Seat in black skai, wooden and brass structure. The chairs are in their juice. The skaï is in good condition. One of the seats is a little "curved", which leaves a small space between the skaï and the wooden structure when no one is sitting on it, it also has the front foot a little more damaged than the others (see photos). Traces of wear on the wood / scratches, wear of time. Dimensions: height: 81cm, width: 45cm, depth: 47cm, seat height: 46cm.