Great find! I agree with Ian it's probably T'boli. They are known for lots of brass/bronze casting abilities. I also see the holes for T'boli hawk bells. Moro trade blade. Even the pattern on the "nose" of the hilt is T'boli.
I think your age is reasonable (really, really old!
).......er........I mean being from the 1st quarter of the 20th century.
In any case I love it!
