Kanji Identification: Stamped Tang Unagi-Saki

[DarwellianEmpire]

I picked up an Unagi-Saki from @Greasylake this week as a fun little polishing project. After removing the handle I noticed a few stamps on the tang and I was hoping someone could share what they mean.

I will attach the original BST post from which I purchased it. In that post @Greasylake said the following:

The kanji are worn but I'm 99% certain it's 東源正久, from Azuma Minamoto no Masahisa. The brand is the same as the tamahagane unagi knife I worked on recently (can be seen here), and I believe they were probably made by the same smith.

https://www.kitchenknifeforums.com/threads/155mm-unagi-saki-wrought.61996/

 

[Greasylake]

I should have knocked off the handle haha, I thought it was epoxied on like my other one and didn't want to destroy it before selling. Anyway, the kanji are 登録 which means registered. The kana look like かね and then I'm not really sure what the third one is, maybe わ?

 

[DarwellianEmpire]

I should have knocked off the handle haha, I thought it was epoxied on like my other one and didn't want to destroy it before selling. Anyway, the kanji are 登録 which means registered. The kana look like かね and then I'm not really sure what the third one is, maybe わ?

Thank you so much! I should have asked you to begin with!