It is perhaps informative that the original subject of this thread plus the example shown by Archer seem to have been photographed by the same source, a particular eBay seller well known to many of us for his inaccurate descriptions of items he sells. 'Nough said.
It is possible each of these has a similar origin and it appears that somewhere in the vicinity of Afghanistan/Pakistan would fit where they were made around 1900. The hilts are obviously local interpretations, and not reflective of Nepalese style, and the cho (blade cut outs near the hilt) are crude and not authentic to the original culture.
Archer's example seems to have some relationship to a sossun pattah with its upturned tip, and I recall JP showing another example with an upturned tip on the old forum -- from memory that one was closer to the Nepalese kukri style.
While the examples illustrated here seem to have some appeal, it is hard to see why the one that just sold on eBay went for $600+ other than someone had to have it.
Ian.
Here is the link to the discussion on the old forum of JP's mystery knife that I mentioned above (missing pictures unfortunately):
http://www.vikingsword.com/ubb/Forum1/HTML/000553.html
And for further discussion of Afghan kukris, here is a thread that JP started on the old forum (also missing pictures):
http://www.vikingsword.com/ubb/Forum1/HTML/001963.html