4 mismatched signed bistro chairs

Beautiful set of bistro chairs. All different but all with a beautiful patina and many points in common: same size, same arched shape, same backrest with four vertical bars, same general appearance. A few details, such as the shades from blond to brown/red, which allow them to be distinguished but the whole remains very coherent. Three are signed, baumann (left), stella (next), fischel (then). The last one on the right with no visible mark. Average seat width 37/38, 44/45 for the arched top of the backrest. Ideal around a farm table, bistro or even in a café. In their juice, time has patinated them (see photos).