Rare silver tanka of Ghiyas al-Din Bahadur (1320-1324 AD), Bengal

Description

Arabic inscriptions within a square, and in the margins: al-sultan al-azam ghiyath al-dunya wa'l din abu'l muzaffar bahadur shah al-sultan bin sultan / Arabic inscriptions citing Caliph al-Mustasim. Dated to 720 AH = 1320 AD. 27mm, 10.7 grams. Mint of Khitta Lakhnauti (either Khitta or Shahr - the epiphet is off flan). "The Coins of the Indian Sultanates" B108. Rare. These coins are very difficult to find with a clear mint name and date, like on this coin.
On Oct 5, 2022 at 08:12:33 PDT, seller added the following information: