Tenkaichi 天下一

Known marks

Tenkaichi - Standard
Standard
Reading

玉鋼別打 ・ tamahagane betsu-uchi ・ specially forged from tamahagane
特級 ・ tokkyū ・ high grade
登録商標 ・ tōroku shōhyō ・ registered trademark
天下一 ・ Tenkaichi ・ the maker brand ("first under heaven")

Documented pieces

Documented – sold

Texts and photographs © Kamisori Harnisch. Quotation with source.