Nasir ul din Mahmud, Silver 1/2 Tanka, 4.83g, Obv: "nasir al duniya wa'l din abu'l muzaffar", Rev: "al-mu'ayyad bi-ta 'yid al-rahman khalifat allah bi'l hujjat wa'l burhan" partial legend visible on both sides (G&G# B487A). Very fine, very rare.