Yasurime Forms

File Mark Patterns

The Yasurime (file-mark patterns) are an important consideration in kantei (appraisal). The condition of the surface of the nakago (i.e. the depth of patina) gives an indication of the age of the blade, and the yasurime can, in conjuction with information gained from other aspects of the blade, give valuable pointers to the maker and school.

The nakago of a Japanese blade is NEVER CLEANED under any circumstances. To do so would seriously reduce its value.

Sujikai Kesho Yasuri Taka no Ha Gyaku Taka no Ha

Higaki Kiri Katte Agari Katte Sagari

Shinogiji Kiri/Hira Sujikai Shinogijo Sujikai/Hira Kiri Osujikai

Blade Characteristics Index and Site Guide