This is an Aritsugu Deba knife. The blade length is approximately 15cm. It is a single-edged knife. The steel is unknown, but it is probably Shirogami (white steel). The handle is made of black buffalo horn. It has a special engraving. This is an Aritsugu Deba knife. The "Ari" and "Toku" characters of the Aritsugu special engraving on the back are likely to disappear due to polishing. I have repaired the rust and scratches, but since I mirror-polished it, some fine scratches and rust marks (pitting) remain. I recommend it if you don't mind. Both the cutting edge and the back are almost mirror-finished and in good condition. The flat surface, in particular, is in beautiful condition. I have sharpened and polished it, so I think it will last a long time. It's a convenient size, so I recommend it for both professionals and general households. It has been finished with a Kitayama 8000 grit stone, a Shapton 12000 grit stone, and a natural whetstone. It is in a very sharp condition, so you can use it immediately. ● Size: Blade length approximately 150mm ● Blade thickness: Approximately 6.4mm at the thickest part of the base of the blade ● Overall length: 285mm ● Weight: 180g #Knife #Aritsugu #Deba #15cm