Dear Gentlemen
I happen to have written years ago ... the Slingshot article on Yar Lung Tibetans that you seem to mention, and which seems to have served as source for the design of many miniatures. For the Irregular line this is for sure as Ian directly worked from my sources. Curtley miniatures seemed to have followed on the same inspiration. To be fair I must say that I was second in line myself, after the one Chris Peers wrote earlier. Mine went a little deeper, with all due respect to Chris for whom I have great admiration.
I would be more than happy to give any information I have. You can contact me on this forum or through my mail at philippe.allard24@gmail.com.
Cheers
Philippe Allard