Bengal Sultanate, Nasir al Din Mahmud Bughra Shah (AH 687-688, 1287-1288 AD), Silver Fractional Tanka, 1.88 gms, Lakhnauti Mint, The main identifying characteristic of this coin is the hollow ornamental bead above the ain of azam which is not seen on the issues other ruler’s in Delhi or Bengal Sultanate. The specimen offered here is struck from the tanka dies, Unpublished, Unlisted in G&G, Unique, very fine+, extremely rare. Note: Nasir al-Din Mahmud Bughra Shah , a scion of the imperial Turk dynasty of Delhi Sultanate & Son of Ghiyath al-Din Balban, was installed as the governor of the esteemed province of Bengal. He successfully wrested dominion from his namesake predecessor, subsequently declaring the sovereign independence of the Bengal Sultanate from the suzerainty of Dehli. His administration minted a singular type of tanka listed in G&G B86 , a testament to the fiscal consistency of his reign. These valuable tankas were predominantly struck from the substantial land-tax revenue collected from the opulent region of Bang. Offered specimen is an extremely rare fractional Tanka of the King whose Full tankas seldomly appear in public sales.