Bengal Sultanate, Jalal ud-din Muhammad (2nd Reign AH 821-836/7 / 1418-1432/3AD ), Firuzabad Mint (off flan), Silver Tanka, Obv: Arabic legend "Jalal ud dunya wa'l din abu'l muzaffar Muhammad Shah al-sultan", Rev: Arabic legend "Nasir al islam wa'l muslimin khuld allahu mulkahu", 10.8g, 28.80mm, (G&G # B331), about very fine, Very Scarce.