Moro Kris with Twist Core

[George]

Kai,

Here is a quick shot of the other side of the blade. It has the arrow-like pattern you speak of but with a slightly different shape to it; a bit less pronunciation which I attribute to hammering.

My experience with Chinese swords is that twist core of this creation (control in pattern, uniformity, etc.) is found in older pieces (pre-20th century at minimum). But the material on the scabbard reminds me of what is found in WWII frogs, etc.

Thanks for the comments.
George