Lot of 7 rock chairs in curved wood Thonet

Lot of 7 bistro chairs art deco Thonet type "Parisian bistrot". Curved wooden structure typical of the Michael Thonet factory. Paper and hot iron stamp "made in Czechoslovakia" under the sits. Very good general condition, dark oak patina. Healthy, sturdy and stable chairs. This lot has been restored, cleaned and oiled. Two chairs feature old restorations with two new seating shelves that have been preserved (more orange patina). Some screw heads are visible (see photos). Some traces and impacts of time but nothing serious (see photos). Height 75 cm - seated 44 cm - seat height 47. The 1940s.