Yanagiba, blade length 29.8cm, 1e9g. The spine is about 4.0mm thick near the top of the heel. It has become thinner due to rust removal, but "Kanjyo" is engraved on it. It's a Seki brand, but I don't know the manufacturer. It's a current brand. Isshin Hamono, a retailer, sells it online, and it seems to be a high-end brand with powdered steel knives costing 40,000 to 50,000 yen. It's a genuine kasumi (layered steel) knife made by bonding soft iron and steel. It's called Sakimaru, and its characteristic is a tip like a Japanese sword. I don't know what situations it's used in. The blade width doesn't change much towards the tip, so it looks more like a takohiki (octopus slicer) than a yanagiba. The handle is water buffalo horn, but it had some wear, so I painted it, horn and all. It looks like it will last a while longer. I sharpened it well, put an edge on it, and polished it. See my profile for the detailed restoration process.