Translation Help-Antique Saw

[Jeanalexandref]

Hello!

I have an antique Maebiki Oga saw which I use quite often. These saws where used by the "Kobiki Shokunin", or Sawyers in Japan a long time ago. I have trouble identifying the signature of the blacksmith engraved on the blade, any help would be greatly appreciated to read these kanji.

Thank you very much for your time!

JA

 

[Toritoribe]

The inscription is too worn out to decipher. The only recognizable kanji is 正; the second one in the right column. The third and fourth one could be 中 and 東, respectively.

 

[bURL]

呚
呚的解释|呚的意思|汉典"呚"字的基本解释

can be a Family name 呚氏 （？）

 

[Toritoribe]

No. That kanji is not used in Japan in the first place.