Bengal Sultanate, Shams-ud-din al tutmish, Silver Tanka, In the name of Shams-ud-din al tutmish (Delhi sultan) by governor Ghiyath-ud-din iwad. Obv: in a circle horseman to left holding a mace around kalima shahada,  Rev: as sultan-ul-muzzam shams-ud-dunya wal deen abul muzaffar al tutmish al qutbi nasir amir-ul-monineen, 10.5g, 27.80mm, about very fine, Extremely Rare.