KORA with Eye symbols

[Mel H]

Thought some may like to see a Nepalese Kora that I recently acquired from a local auction house. I've not seen many of these over the years so am happy to have it, it seems to follow the general form of the ones I see online with the metal hilt which has an almost slab sided hexagonal metal grip, together with a knuckle guard which I think is less often seen. The blade, sharpened on the inside edge which is engraved with an eye on either side is substantial and quite a bit heavier than I envisaged, I would describe the wide and blunt fore end as almost club like, it would certainly slow down any helmet wearing enemy. The overall patination has darkened it, I'm quite happy to leave it that way but I'm sure that I can see some grain in the blade. I'm also intrigued by the 'knurled' effect at the ricasso, does this appear on any other Asian swords?
I'd welcome any thoughts.