Hello Luc,
it's a Phia Kaetta from Ceylon, a Singhalese dagger, you will find many threads about this dagger. One just ended by e-bay:
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEDWX:IT
I byself don't know so much about, but I like them very much.
sajen
I just found this thread:
http://www.vikingsword.com/vb/showth...ht=phia+kaetta