Dear Paul, Paul, and Paul,
Thank you all for your recent comments and insight on this topic.
In the meantime, I have managed to obtain several more of these interesting ranks and would like to share them with you all:
First, a modern Nepalese Army four-star general rank worn by the Chief of Staff. These have heavy brass devices pinned to the old-style epaulettes which are still stiffened with plastic cut outs inside, just like in the good old days.
And then, three sets of cloth ranks made by a Kathmandu tailor for the Royals: The late King Birendra, the late Prince Nirajan, and the late King Dipendra. All died in the royal massacre in 2001. Apparently, these ranks were ordered by the palace but never collected.
-achern