Kampilan Bolo - Bogobo or T'boli or a mixture?

[prh345]

Hi Kai,

I'll follow your suggestion about re-polish and etch again and and see if anything shows up on the back edge.

This sandwich construction you mention is similar to the Japanese Katana fabrication method called "Sanmai" where the harder steel runs right through the middle of the blade. I have a Katana that uses this construction. Its only a modern Chinese version, (sadly the genuine article is way out of my reach) but still very well made and an excellent cutting blade.

Thanks for your input,
Peter