Deba knife, blade length 15.4cm, 216g. The spine is about 7.9mm thick near the top of the heel. Unfortunately, there is no maker's mark. It's unclear whether it was never there or was removed during sharpening. This is a genuine kasumi knife, made by layering soft iron and steel. I think the rust marks are mostly gone and it's clean now. If you look closely, there are some faint marks and small scratches remaining, so please check the photos carefully. The plastic handle retains about 30% of its original luster. It seems like it can still be used for a while. I sharpened it thoroughly, put an edge on it, and polished it. Please see my profile for the detailed restoration process.