The obvious modernization (improvement) of the national Yakut blade. Using sandwich lamination. It just occurred to me, I do not seem to have seen it (but I can and I'm wrong). On the concave side is steel W19, on convex ancient steel, which is more than 100 years old.
My article on this topic: https://sites.google.com/site/akutski...
My website: https://sites.google.com/site/damasks...
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