This is a Minoshiro Deba knife by Minamoto Yasumitsu. The blade length is approximately 21.5cm. It is a single-edged knife. The steel type is unknown. The handle is made of black buffalo horn. I am re-listing this item after making some corrections to areas of concern from a previous listing. This is a slightly longer Minoshiro Deba knife. It has a slender and sharp appearance, which I think looks good. I have sharpened and polished it, so both the cutting edge, the flat surface, and the back are almost mirror-finished, but some minor scratches remain due to the mirror polishing. I recommend it if you don't mind them. It has a good weight and balance, and it is generally beautiful, so I think it can be used for a long time. It is an easy-to-use size, so it is recommended for both professionals and general households. The sharpening was finished with Kitayama 8000 grit, Shapton 12000 grit, and natural whetstones. It is in a very sharp condition and can be used immediately. ● Size: Blade length approx. 215mm ● Blade thickness: Approx. 6.0mm at the thickest part of the base of the blade ● Overall length: 365mm ● Weight: 269g #Knife #MinamotoYasumitsu #MinoshiroDeba #21.5cm