Set of 4 canned bistro chairs ZPM Radomsko design Thonet

Set of 4 bistro chairs with canned seats zpm radomsko in thermocurved wood. The thonet chair n° 18 was designed by gebrüder thonet around 1875, one of thonet's most popular chairs. This set of 4 chairs was manufactured by zpm radomsko in the 1960s, a former thonet factory nationalized after world war II. The labels are under the seats (except under the one whose cannage has been redone.) Wear of use and varnish jumps. I join a fifth chair of the same model whose cannage is to be redone (see photos).