Hello,
I am a little bit surprised that nobody correct you until now, it's not a talibon but a binangon or tenegre. Age I would guess again around WWII. The lack of patination and the workmanship let me think like this. Look for example my one from the same time frame:
http://www.vikingsword.com/vb/showth...hlight=visayan
Please try to rub away that gunk, would be very interesting what the inscription is.
Best regards,
Detlef