Hi Jose,
I was thinking the reason the waves looked a bit sharp was because of the angle the pictures were taken. Of coarse this is only an opinion. The only picture that is straight on is of the grip itself and shows little of the blade. I've been searching for information on brass and copper bladed knives from the Philippines since the first one I found and posted here on the forum. The main reason that I started this post was because of the extraordinary price that this one brought and thought that someone might be able to shed new light on the purpose or significance of this style of weapon.
