Does someone know what type of blade this is?
 

I saw this blade in Thailand, but have no idea if it fits in a catagory.
the blade is about 25 cm long and very thick 10mm and has simple thai engravings with a wooden scabbard and handle, the handle is about 10 cm long.
I posted this on the blade design forum, and Mark Bowditch sugested I ask here.
here are the pictures.

http://img186.imageshack.us/img186/1994/oddrudenw6.jpg

http://img186.imageshack.us/img186/3...drudumefb1.jpg

I have written about this exact the same knife here:

http://www.vikingsword.com/vb/showthread.php?t=2344