Bengal Sultanate, Nasir ud-din Nusrat (AH 925-938/1519-1531 AD), Arsah Mint, Silver Tanka, AH 937, Retrograde date, Obv: Arabic legend "al-sultan bin al-sultan Nasir ud-dunya wa'l din Abu'l Muzaffar", Rev: Arabic legend "Nusrat Shah sultan bin Husain Shah Sultan al-husaini khuld mulkahu", mint name and Hijri year completely visible at the bottom, 10.62g, 25.00mm, (Similar G&G # B800, small flan & date unlisted), choice extremely fine, Rare in this grade.