Dehli Sultanate, Tughluq Dynasty, Firuz Shah Tughluq (AH 752-790/1351-1388 AD), Billon Tanka (4), AH 772, 773, 775 & 776, Obv: Firuz Shah Sultani darabat ba-Hadrat Delhi, Rev: al-khalifa amir al-muminin khulidat khilafatuhu, 8.90g, 17.5mm each approx, (G&G # D476), about very fine.