Interesting Archer...
From what you say & the new pics it does seem finer damage then the old kitchen knife sharpeners..
But to me the "serrations" still look like they would have a blunting effect, where serrations to improve cut have a sharpening effect. {sorry for stating the obvious there!}
The indentations on your blade appear essentialy horizontal to the cutting plane? essentially blunting it, not scallops steeply angled to improve true meat slicing ability?
As Jim implies there may be some deep esoteric/spiritual/ritual or religious reason for this, that I or we have no current understanding off, but in all honesty to my mind it would make it less of a practical weapon, than either the normal edge bevel or a properly angled scalloped edge.
spiral
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