This is a Nakiri Usuba knife, bearing the inscription "Munegisugi." Total length: 31 cm Blade length: 16 cm Finished with 280,800 grit Shapton 2000 and natural whetstone. This knife has a black rust that gives it a smoky silver appearance. The sharpness is very good, but it is prone to rust, so I think it is a knife for advanced users. Thank you for viewing.