Is this a Masamoto knife?

[Lillo97]

Hi I am Lorenzo,
I am sure someone can help me.
I am interested in buying this used set of knives: i am pretty sure about the deba and the takohiki being from the Masamoto manufacture but I am not sure about the yanagiba (the photo with the wooden background and the one with dark blue background) Can someone help me translating these kanji?

Thank you for your time
Lorenzo

 

[Toritoribe]

The deba (the left one) and takohiki (the right) are indeed made by Masamoto Sōhonten.

the third picture
登録　正本総本店
Registration Masamoto Sōhonten

However, the yanagiba (the center) is made by 吉兼 Yoshikane / 吉金刃物 Yoshikane Hamono Co.,Ltd.

the fourth picture
吉兼作
Made by Yoshikane

株式会社吉金刃物【和包丁】【吉兼作　吉兼久作】

株式会社吉金刃物のホームページです。三条の包丁鍛冶職人「株式会社吉金刃物」。伝統の打刃物【吉兼作　吉兼久作】をはじめ、統的な工法に従い職人が一丁一丁時間をかけて手作りします。

yoshikanehamono.com