Mahmud bin Muhammad Tughluq, Gold Tanka, 11.02g, Arabic legend on both sides, Obv: “Mahmud Shah bin Muhammad Shah bin Tughlaq Shah al-Sultan,” Rev: “Yameen Amir al-Mumineen Ghiyath al- Duniya wa al- Din Abu al-Muzarffar” (G&G# D455). Very fine+, rare.