Quote Originally Posted by onimaru55 View Post
To my eyes, the kanji on the box matches that on the blade so I'd say it's a Tosuke.
He did use gold colored fill on the kanji of some razors also.

Can you see a weld line ? If not it could be one of the solid ones he made from Kikusui steel, a bit like Hitachi White 2.
I found a couple of others with a similar Box

What is throwing me off is the "R"