I am a book collector to and visit every flea market in search for old and now forgotten books. last time I found a book from a german who turn the world around with a bycicle in 1951-53. he did some spectacular things then for example near Las Vegas he sneak into the dessert behind the US Army cordon to visit a nuclear bomb test from a hide in the mountains just 16 km away from the bomb. btw, he survive this and became 78 years old.
in vietnam he was the guest of Bao Dai for some days hunt with him in the jungle and shot an elephant and one of two tiger's when the emperor shot the other one. he described the emperor like you do: open minded, intellegent, real sportsman and very popular especially under the tribal man the Hmong or Meo which he had as companions when hunting dangerous game.
must have been a real nobelman...

the rifle he have here looks a little bit like Rigby to me

when you start looking for indochine which had a very similar wildlife like india and farther india you are surprised how much material exist
http://forums.nitroexpress.com/showflat.php?Cat=0&Number=231547&Main=218490#Post231547
of course, it came into my mind because of the Mas 36 in 10,75x68 I am await for september.

there are more books available as I found out
http://www.montbel.com/boutique/fiche_pr...g_fr&num=17

http://www.amazon.de/Grandes-chasses-coloniales-Tome-Indochine/dp/2914390963

http://www.amazon.fr/Derni%C3%A8res-chasses-Indochine-%C3%A9l%C3%A9phants-1946-1954/dp/291439070X