Fath Khan bin Firoz Shah as Sultan of the Eastern provinces under Firuz Shah Tughlaq (appointed in AH 1359), Gold Tanka, 10.54g, citing Caliph al-Mut’asid Billah, Iqlim al-Sharq Mint (not visible), Obv: Arabic legend “Fi Zaman al-Imam Amir al-Mumineen Abi al-Fateh al-Mut’asid Billah Khulidat Khilafatahu”, Rev: Arabic legend in circle “Fateh Khan Firuz Shah Jall Alla Dhilalahu Jalalahu” (G&G# D505). About very fine, very rare