About 23hoki
This sword could have been the operate of any one of such Ko-Hôki smiths. Examples of the do the job of all of them are extant right now. Common details within their workmanship can be a coarse mokume-hada, a jigane that appears darkish, plus the presence of both ji-nie and chikei. The hamon is ko-midare, consisting of the nie construction with ki