Watch List notes:

Assam, Gaurinatha Simha (1780-95), octagonal Rupees, Sk. 1717 (3), different dies, rev. one with faint circle of dots top left, the second with '1' before lion at bottom of flan, the third with 'di' to the left of the lion (RB. 60.2, 61.1 plate coin, 63.1 plate coin; KM. 218, 220), generally very fine, some rare variants (3).
Ex. Nicholas Rhodes Collection
According to RB, "di" indicates that the coins were struck at the mint of Dichoi.
Estimate: £100 - £150