Islamic - Post-Mongol Iran,QADIS OF SIVAS: Burhan al-Din, 1380-1398, AR akçe (1.48g), Kayseri, A-2326, Perk & Öztürk-470/71, obverse legend sanni al- alami al- adili al-burhandi ("resplendence of the world, of justice, of the Burhanis"), with countermark tentative read as bahâ (Perk & Öztürk mark #13), Fine on VF host, RR.