Knife for I.D. Chinese? Tibetan? Bhutanese?

[Jim McDougall]

While this topic is open here, I thought I would take the opportunity to ask about am item I have had for some time, and with limited resources and knowledge on these weapons this seemed a good time.

I had thought it perhaps a short sword which seems I recall termed 'dossum' in Tibetan, but that research was from many years ago.
Can you guys offer some insight?