Kensei 研精

Kensei・ 研精

Known marks

Kensei - Standard
Standard
Reading

登録商標 ・tōroku shōhyō ・registered trademark
研精 (last Kanji hard to read but most likely)  following kanji unreadable

Documented pieces

Available

Texts and photographs © Kamisori Harnisch. Quotation with source.