Tako hiki knife, blade length 23.4cm, 95g. The spine is about 3.0mm thick near the top of the heel. Unfortunately, there is no maker's mark, but it is engraved with "Koshin Shodo Kai Founding 20th Anniversary," so I don't think it's particularly expensive. However, it is a genuine kasumi knife, made by laminating soft iron and steel. It has no signs of use, no rust, and is as clean as new. Before sharpening, the cutting edge still had the paint completely intact. The sharpening was still a bit rough, so I sharpened it properly. It seems like it will last for a while. I sharpened it thoroughly, put an edge on it, and polished it. Please see my profile for the detailed restoration process.