Watch List notes:

Bengal Sultanate, Silver Tanka, AH 632, Struck in the name of Shams ud-din Iltutmish, Sultan of Delhi and the Caliph al-Mustansir Billah (AH 628-633/1230-1236 AD), & during the Bengali governorship of Malik Tughril Tughan Khan (1233-1243), Obv: Arabic legend The Kalima Shahada with "al-mustansir billah amir al mominin", Rev: Arabic legend "al-sultan al azam Shams ud dunya wa'l din Abu'l Muzaffar Iltutmish al sultan nasir amir al mominin" in arabesques segment, 10.62g, 28.00mm, (G&G # B48), choice extremely fine, Extremely Rare.