Qutub al din Mubarak Shah, Silver Tanka, 10.77g, “al- imam” type, AH 717, Hadrat dar al Khilafa Mint, Arabic legend on both Sides, Obv: “Mubarakshah al sultan ibn al sultan al wathiq billah amir al mu minn”, Rev: “al imam al a’zam khalifa rabb al alamin qutb al dunya wa’l din abu’l”, Date and Mint name in outer margin (G&G# D258). Extremely fine+, rare.