help with stamp in kampilan-blade!

[Maurice]

Hi all,

I just came back from a visit of a friend who had a nice kampilan with a stamp in the blade.
It was stamped from both sides near the handle with WCCO? (if I am not mistaken).
I know of barongblades which are made in china were signed with chinese marks. But I never saw a kampilan blade with stamp.
Anyone knows anything about the WCCO-mark?

Unfortunately no pics yet!

Regards,
Maurice