: On collector forums like the Nihonto Message Board , it is often used for modern Chinese fakes that mimic Japanese signatures but lack the correct historical construction.
The phrase "The Sword That Shouldn't Exist" often refers to the legendary , a group of roughly 170 medieval Viking swords found in Europe. These weapons are considered historical anomalies because: The Sword That Shouldn't Exist
: They were crafted using crucible steel , a high-purity metal with a carbon content so high that the technology to create it wasn't thought to exist in Europe until the Industrial Revolution. : On collector forums like the Nihonto Message