Thats what I figured !! Your chair is made similarly to Michael Thonet`s bentwood chairs !! But like Tales said , I think its later as well,, perhaps late 30`s early 40`s !! Don`t remember his chairs having hex nuts like that !! Thonet made furniture for the masses and had several factories in Europe !! No huge money,, maybe $200. USD if in excellent condition !!
