INDIA, Islamic Sultanates. Malwa. 'Ala' al-Din Mahmud Shah I. AH 839-873 / AD 1436-1469. AR Square Tanka (18x19mm, 10.90 g, 1h). Hadrat Shadiabad mint. Dated AH 86[2or 3] (Struck AD 1456-1458). Titles of 'Ala' al-Din Mahmud Shah I; traces of date below / Continuation of honorific and name of 'Ala' al-Din Mahmud Shah I. CIS M32; Rajgor Type 3034. Traces of iridescence. Good VF.