Tanto "Nagayuki"
Blade length 28.6cm, thickness at the base 7.5mm, width 28.5cm
This is a tanto blade with a clear signature "Nagayuki". We can find several smiths named "Nagayuki" in books, but we don't know which smith this is. Anyway, healthy blade.
Steel has visible wood grain layer pattern. Steel color is fine.
Hamon is made of small particles. And its pattern is well designed gunome.
Polishing work is not very good. The blade surface has some scratches. But still good enough to study the blade.
We are still confused who this Nagayuki is. The steel looks Koto, and the rust on the tang also looks old. On the other hand, the hamon is well designed. It looks like Shin-shinto. So, this is from 16th century or 19th century. We need more research, though.
Tang
Signature "Nagayuki"
Habaki is made of copper. It has good fit with the blade.
Shirasaya and bag
