Legend within a dotted square / Inscriptions, Shahada, dated to 956 AH = 1549 AD. 19mmx19mm, 11.13 grams. Mint of Patna (?). "The coins of the Indian Sultanates" D-965A var. (round coin depicted, RRR), Rajgor -. SKU T942-52158

This seems to be a variation of the very rare round rupee from Patna mint (D-965A) - the design is the same, but it is struck on a square flan. It seems to be a fouree, with the small piece of the plating missing. Unique, completely unpublished.