MUGHAL: Akbar I, 1556-1605, AR square rupee (11.31g), [Katak], AH978, KM-82.4, Liddle-S11, date is engraver's typo for AH987, as the square rupee was not introduced unil AH986, 2 small testmarks, bold strike, EF, RRR. The Katak mint is identified by the tree-link symbol that rises from the "D" in the name of the Prophet Muhammad on the reverse, also clear in the specimen illustrated by Liddle, which is correctly dated AH987.
Estimate: 400-600 USD