Africans or dayak bronze hilted swords ?

[Marius66]

Good evening,
I cleaned the blades and hilts ,
Interesting in the bagobo model without guard, we now can see a part of the wood hilt under the brass.
For the blades, both really sharps, I cut myself twice while cleaning them 😁
I used vinegar , it darkened the blades but it don't seems there is a pattern,
Maybe is it useful to sand the blades and use a better etchant ?