Delhi Sultanate, Khilji Dynasty, Qutb ud-din Mubarak (AH 716-720/1316-1320 AD), Qila Qutbabad Mint, Gold Square Tanka, AH 719, Broad flan, Obv: Arabic legend "al-imam al-a'zam khalifa rabb al- alamin Qutb ud-dunya wa'l din Abu'l Muzaffar Mubarak Shah", Rev: Arabic legend "al-sultan ibn al-sultan al-wathiq billah amir al-mu'minin", mint name & Hijri year in the margin, 10.76g, 25 x 25.00mm, (G&G # D248), XF-AUNC, Extremely Rare.

Note: Qila' Qutbabad is the Fort of Deogir which Qutb renamed in his own honor.

Estimate: INR 250000 - 300000