Tomonari友成

Ko-Bizen school · Bizen province · active 987-989

Hawley reference TOM134
Hawley
300
points — scale 15 (recorded) to 500+ (legendary)
Fujishiro
Sai-jo saku
supreme masterwork — the highest grade
Tōkō Taikan
¥35M
reference market valuation (Tokuno Kazuo, 1977)

Smith record

EraEien (987-989)
Active period987-989
ProvinceBizen
School / traditionKo-Bizen
Hawley IDTOM134

Recorded signatures (mei)

友成tomonari
友成作tomonari saku
備前國友成bizen kuni tomonari
備前國友成造bizen kuni tomonari tsukuru
備州友成作bishū tomonari saku
君萬歳備前國友成造kimibanzai bizen kuni tomonari tsukuru

Reading an inscription on a nakago? Try our mei reader and era converter.

About these ratings

Hawley points come from W. M. Hawley's Japanese Swordsmiths (1981), the standard Western reference cataloguing over 12,000 smiths. Most recorded smiths sit at 15–20 points; only a few dozen legendary masters exceed 150.

Fujishiro grades (from Nihon Tōkō Jiten) rank workmanship from Chū saku up to Sai-jō saku, while the Tōkō Taikan valuation (Tokuno, 1977) reflects each smith's relative market standing in yen. Explore more smiths in the searchable swordsmith index.

Own an authentic nihonto

Every blade in our collection is an original antique Japanese sword, sourced in Japan — including works in the Ko-Bizen tradition when available.

Browse swords for sale