Square silver 1/4th tanka of Mahmud Shah II (1510-1531), Malwa Sultanate, India

Description

Legends on both sides:
Mahmud Shah Khalfi bin Nasir Shah // Al-Kibriya lillah.
Dated to 918 AH (1512 AD). 13mm in diameter, 2.1 grams. "The coins of the Indian Sultanates" M-158.
Silver issue (not billon), scarce.
On Oct 26, 2022 at 08:39:47 PDT, seller added the following information: