Watch List notes:

Bengal Sultanate, Nasir-ud-din Mahmud (AH 837-864/1434-1459 AD), Gold Tanka, Obv: nasir al-dunya wal din abul muzaffar or abul mujahid mahmud shah al-sultan, Rev: abul muzaffar mahmud shah al-sultan, al-mu ayyad bi-tayid al-rahman khalifat allah bil hujjat wal burhan, 10.76g, 21.70mm, (GG # B405), about very fine, Rare.