About 23hoki
This sword could have been the function of Anyone of these Ko-Hôki smiths. Samples of the do the job of all of them are extant now. Widespread factors of their workmanship can be a coarse mokume-hada, a jigane that looks darkish, and also the existence of the two ji-nie and chikei. The hamon is ko-midare, consisting of the nie composition with kin