Taiwan Paiwan Formasa sword/dagger

[Maj-Biffy Snodgrass]

Looks very suspect to my wandering eye, the leather washers and aluminium rivets look very wrong for the region considering other more native ethno pieces I have seen are set with resin and no hilt rivets or pins, I suspect it is one of the tourists types that lost its hilt and got a replacement at some stage by a non Asian restorer but one with some skills in knife making maybe ?, it certainly looks a better job than the original tourist type hilts, for me whoever did it did the blade a favor.
A friend has one in its original form, if I remember correctly the hilt was dark wood with a small ring ferrule in thin sheet type brass, possibly had lizards carved on it to. Snody