I Need YOUR Expertise On This One!

[GlobeTrekker]

What the heck kind of edged weapon am I?

I am relatively new at dealing with antique edged weapons and want to learn AS MUCH about this specific piece as possible. Please help!

I purchased sword (maybe darb?) in Bangkok, Thailand exactly one week ago. It has a well worn teak handle and scabbard. Rattan bindings on the scabbard. Small 'eyelash' halfmoon engravings on the blade. Brass (?) ring where the handle meets the blade. It also has a razor sharp blade and is kind of wavy if you look down its length. The interesting thing about this weapon is its practicality; it is by no means a show sword and meant to look pretty. To me this looking like a useful piece, one that could be used on a daily basis if needed...

I am especially interested in the age, region of origin, possible uses, crafting method of the blade, and blade engravings.

Any help would be sooo much appreciated. If you have any ideas I would love to hear them. Thanks for taking the time to look at my new piece.

-GLobetrekkER