Hi Simon,
Now thats what I'm talkin' about! Excellent information and thank you for you great photos. Its been quite a while since we've had any discussions on these interesting hybrids, so Im really glad to see this thread, and especially glad to review the topic. It seems I have often heard of the incredible diversity of weaponry in Nepal, and friends I have known who visited there noted the longstanding presence of many Indian weapons, including the tulwar as you have observed.
Nice call, and the supported information very much appreciated...now when I find those notes I can get them updated
All the very best,
Jim