¥1,500,000

Tracked across 76 dealers worldwide · price history · sold archive

Specifications

About the maker

Sa Sadayuki定行

Sadayuki belonged to the Sa school of Chikuzen Province, a lineage that emerged in the early Nanbokucho period and broke decisively from the classical styles previously characteristic of Kyushu workmanship. Traditionally regarded as a student of Yukihiro, with an alternative transmission placing him under Yasuyoshi, Sadayuki is recorded with an extant date of Shohei 12 (1357) in the *Umetada Oshigata*, placing his activity squarely at the zenith of the Nanbokucho period. One theory holds that he later relocated to Aki Province. Signed works are few, and the overwhelming majority of attributions rely on *kinzogan-mei* appraisals, including examples authenticated by Hon'ami Koshitsu. The designated pieces exhibit the unmistakable technical vocabulary of the Sa lineage in both *jihada* and *hamon*. The forging shows *itame* mixed with *mokume* and *nagare-hada*, with fine *hada-dachi*, thickly applied *ji-nie*, and abundant *chikei*, producing a bright and luminous *jigane*. The *hamon* is characteristically founded on a shallow *ko-notare* mixed with *gunome*, *ko-gunome*, and *togariba*, with strongly adhering *nie* and frequent *hataraki* including *kinsuji*, *sunagashi*, and intermittent *yubashiri* at the *yakigashira*. The *boshi* enters *midare-komi* and turns back with a pointed tendency, often showing *hakikake*. Where the *nie* is particularly thick, *nie-kuzure* appears along the *habuchi*, lending the temper a vigorous and expressive character. Sadayuki's works preserve the heroic proportions of their era: wide *mihaba*, extended *chu-kissaki*, and generous *hiraniku* in the long blades, and *sunnobi* *hira-zukuri* forms in the shorter pieces. Both *ji* and *ha* are consistently bright and clear, confirming the Sa school's refined sensibility, and the sound condition of these blades attests to the enduring quality of Sadayuki's forge craft.

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