Lovely find Russel!
Unusual shape blade, in truth the blade decoration strikes me as one sometimes seen mid. 19th century. The straightness of hilt & the look of the kaudi area do seem later 19th century to me
So I would say your estimate seems quite likely.. Around that area give or take 10 years.}
To help non kukriites understand the measurements notation here's the kukri dimensions drawing we usually use. {Originally designed by Yvsa who has sadly walked west.}
I wonder what was originally inset in the ivory, next to the bolster? Cabochon Gems I suppose, rubies would have looked good, with the silver & ivory.
A truly lovely & unusual piece, any chance of a photo of the butt end?
spiral