hmm interesting , i dont think it is a traditional weapon , quality of the stuff looks good though athough many dont look very traditional patterns.
guiho wood is found in thailand malaysia, kambodia ect as well, cant recall the thai name of the top of my head. but its good for things like runners for hand rails, draws and wooden sliding surfaces as its oily like teak but much harder.
the thai octagonal baton in my first picture its coming probably from indian or malay weapons of this style.
not that common as the khom-fag just has much more power and is faster and more lethal to use.
ps i notices on several forums you are a fan of all manner of clubs and cudgels
it iis good to meet a fellow bludgeon enthusiasts ! i have 100s i particularly like other peoples old home made ones