Watch List notes:

Assam, Rudra Simha (1696-1714), octagonal Half-Rupees (3), 5.65, 5.64, 5.30g, undated, legends in three lines on both sides: Śrī Śrī/ Śiva Pada/ Parasya, rev. Śrī Śrī/ Rudra Si/mhasya, all different die types (RB. F25.3, F25.4, F25.5; KM. 38), very fine (3).
Ex. Nicholas Rhodes Collection

Half-Rupees of this ruler are scarce compared with full Rupees.
Estimate: £80 - £100