Bengal Sultanate, Sikandar Shah Bin Ilyas (AH 758-792/1357-1389 AD), Hadrat Firuzabad Mint, Silver Tanka, Type VI, Obv: Arabic legend "al Imam ul azam abul mujahid Sikandar Shah ibn Ilyas Shah Al-sultan", Rev: Arabic legend "yamin al khilafat Allah nasir amir-ul mominin" within an inner circle, mint name in the margin, 10.74g, 28.86mm, (Variant of G&G # B181, small flan unlisted), test marks, about extremely fine, Rare.