Tang Translation Please

[Terry K.]

I don't know if pictures are good enough but hopefully someone can do it. I am sure a machine blade but from a beautiful sword.
Thanks in advance,
TK

[GHP]

Sorry, nothing really to translate. These are phonetic "alphabetic" [katakana] used for assembly of blade to fittings/scabbard.

タ。イ。四

Ta. I. 4

Replacing the katakana relative position using the European alphabet:
F.B. 4

--Guy

[Terry K.]

Sorry, nothing really to translate. These are phonetic "alphabetic" [katakana] used for assembly of blade to fittings/scabbard.

タ。イ。四

Ta. I. 4

Replacing the katakana relative position using the European alphabet:
F.B. 4

--Guy

So basically like assembly numbers. It is what I thought , not a signature. Too bad also as it is a beautiful sword.
Thanks Guy