Malwa Sultanate, Ala-ud-din Mahmud I (AH 839-873/1436-1469 AD), Hadrat Shadiabad Mint, Copper Tanka, Obv: al-sultan al-halim al karim ala ud-dunya wa 'l din, Rev: abu 'l muzaffar mahmud shah khalji, mint in margin, 9.96g, 21.71 x 21.50mm, (G&G # M32), about extremely fine.