Sultans of Bengal, Silver tanka of Nasir al-Din Mahmud Shah (1434-1459 AD), Dakhil "Banjaliya" mint, AH 844, 'HALF TUGHRA TYPE' G&G B460 (Date not listed in G&G), 10.65g. Ovb.ruler's titles partly in tughra characters,with abu'l mujahid; Rev. khallada legend mint and date in margin Good Very fine, Very scarce.