Kantei keys of the Juzumaru
- Sugata
- Tachi of 83.7 cm with 3.0 cm of sori; Satō Kanzan describes it as of imposing and very healthy sugata AT
- Jihada
- Ko-itame with midare-utsuri and ji-nie AT
- Hamon and bōshi
- The sources consulted do not describe them PC
- Nakago
- Ubu, with one mekugi-ana AT
- Mei
- 恒次 (Tsunetsugu), on the omote face AT
Ko-Bizen in general
For the Ko-Bizen in general, Nagayama’s study collected by the Japanese Sword Index gives as kantei traits chōji-midare in nioi-deki, a mokume hada and utsuri.
A Tsunetsugu of Aoe, for comparison
The tachi signed “Tsunetsugu” at the Kyūshū National Museum, from Bitchū, measures 75.6 cm with 3.0 of sori: shinogi-zukuri and chū-kissaki, a tight ko-itame with mokume, a somewhat deep nioi suguha and a round bōshi; the nakago is ubu, with the tachi signature towards the mune and not in the centre, and ōsujikai yasurime. Its record says that these are traits common to the Aoe of the end of the Kamakura.