Bengal Sultanate, Muiz al Din Bahram Shah (AH 637-639, 1240-1242 AD), Silver Tanka, 10.00 gms, Lakhnauti Mint, citing Abbasid Caliph al-Mustansir, Obv. Al sultan al azam muiz al dunya wa’al din abu al Muzaffar Bahram Shah al sultan nasir amir al mumineen, Rev. fi ahd al imam al Mustansir amir al mumineen, G&G #B60, very fine+, very rare.