Rukn al din Kaikaus, Silver Tanka, 10.99g, Lakhnauti Mint, Obv: Arabic legend “al-Sultan al azam rukn al Dunya wa’l Din Abu’l Muzaffar kaikaus al Sultan bin al sultan bin sultan” in rectangle, Rev: Arabic Legend “al Imam al Musta'asim Amir al Mumineen” (G&G# B89). About extremely fine.