You know Robert , I wouldn't want to guess its age , suffice it to say that it is not new .
Most likely this is a blade from Mindanao , but with only Cato's typology to go on personally I would be inclined to say Maguindanao . Ymmv
It would be nice to hear some of the other guys chime in here but you're not exactly getting trampled in the rush to answer your inquiries .
