Not in this case...
This is like the Astin Martin, or more to the point, a custom built car from an extremely skilled craftsman.
170 ever found.
Extremely advanced technology.
“Made in China.”
You are not far off. Chinese metallurgy as well Eastern furnace design were quite advanced in ancient times. Nothing like the reputation for cheap junk like these days. Nova had a special on this sword some time ago. They deduced the Vikings acquired billets of high carbon or crucible steel from eastern trade routes when they worked the rivers of Russia. The Vikings were not only a burn and plunder bunch they also traded and explored. The furnace design was critical it was the only way the heat could be made high enough to work the metal.