Mahmud Shah I, Gold Tanka, 11.09g, Hadrat Shadiabad Mint, Obv: "al sultan al-a zam ala dunya wa l din khalji abu l muzaffar Mahmud shah khallada allah khilafatahu", Rev: "Sikandar al thani yamin al khilafa nasir amir al mu minin" (G&G# M21). Extremely fine, very rare.