Ghiyath al din Balban, Silver Tanka, 10.38g, Lakhnauti Mint, Obv: Arabic legend “al-Sultan al azam Ghiyath al Dunya wa al Din Abu al Muzaffar Balban al Sultan” in rectangle, Rev: Arabic Legend “al Imam al Musta'asim Amir al Mumineen”, date and mint in margin (G&G# B78). Broken from side otherwise extremely fine.
These are coins struck in the name of Delhi Sultan Ghiyath al din Balban.