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I inherited a sword that was brought back from WW2 by my wife’s grandfather.
It is not in great condition but I have not been able to decipher its origin.
I will attach pictures. There are 5 Japanese characters plus a small symbol on the tang. On one side of the blade is an engraved dragon chasing a flaming jewel. The detail is good. On the other side there is a symbol I have not seen anywhere in my research so far. Any help would be appreciated. This is a katana.