Manolo
I have two flyssa one large and one small and I don't think as Ian stated that your knife was made from a flyssa blade it would have a thicker tapered spine. I really think this is a locally made variant of a khodmi made for the tourist trade. I have seen the same hilt and guard on a few versions one actually had a kris style blade with the same markings as yours. Here is a link to that kris bladed one. As you can see the kris bladed piece is a nonfunctional blade which leads me to think these knves are made for the tourist trade.
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=6602494709
Lew