Nice old Ilocano knife

[Marc]

I don't see anything particularly Spanish on it, to be sincere. I would also have said Katipunan.
On the other hand, knives tend to lend themselves to a really great deal of variety (steak knives of the world, anyone?), so general shape only take me so far, and I have to say I'm relying on the symbol for the katipunan attribution. The shape is more European than Philippino, sure, but not particularly Spanish, at least as far as I can say.
Katipunan regalia tend to favour europeized shapes, though, at least regarding daggers. Could we have a specific typology, here? This is a bit out of my field, wish I could contribute more...