Bar-Tracer batu, elemen dekoratif penting saking gaya Gotik, pertama pisan kaanggen ring Katedral Reims nenten sue sasampun 1211, ring Chevet sane kawangun olih Jean D'Orbais.
Stone bar-tracery, an important decorative element of Gothic styles, first was used at Reims Cathedral shortly after 1211, in the chevet built by Jean D'Orbais.