Could this Kamisori be made of Tamahagane steel?
Experts' opinions needed. I've bought this Japanese razor on eBay recently, and it cost significantly less than anything made of Tamahagane would. So I don't expect it to be that good. Seller did not make such a claim himself, still, the razor has markings on it saying Tamahagene in kanji - 玉鋼 (at least that's what I'm seeing). Apparently, the seller sees the same: he has put this explanationary picture of what those markings mean:
http://img532.imageshack.us/img532/6205/705j.jpg
As you can see, he considers Tamahagane to be a brand name. So, what I'm asking is: could that be right? It just seems a little doubtful to me that "Tamahagane" is available to register as a brand name, for as such it sure could be misleading.
Here's a closeup of the stamped side:
http://img94.imageshack.us/img94/3772/708s.jpg
[the razor has not arrived yet, so I can only provide you with these pictures made by the seller]
Any suggestions are much appreciated.