渡部在哉(ありちか)は儀兵衛と称し、寛文元年庄内鶴岡の生まれ。庄内金工の中でも安親に並ぶ感性の持ち主で、味わい深い作品を遺している。鄙びた風情の中にも洒落た視点の置かれた図や、素銅地の素性を活かした作など、北前船が運び来る各地の文化を映し出したものであろう、数奇者好みに仕立てられたものが多い。古銭を散し配したこの縁頭は、素銅地に特殊な地模様を薄肉に彫り出し、高彫に赤銅、金、緋色銅、山銅などの色絵を加えた、在哉の標本的作品。
Offered by Choshuya
This piece has sold
Get an email when a new Shonai Arichika piece hits the market.





Edo
Dewa
Signed
Hozon (NBTHK)
As written by the shop
Kinko · Dewa · around 1670
1 piece on the market now
Where Arichika stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Kinko · Dewa
14 pieces on the market now
The Shonai metalworking tradition arose in the castle town of the Sakai lords in Dewa Province, where geographic remoteness from the great urban ateliers fostered a distinctive regional idiom sustained across multiple generations of domain-retained craftsmen (kakae-ko). The earliest master attested in the designation corpus is Zaoya (1661--1742), who studied under Sato Chinkyu -- the same teacher who trained Nara Yasuchika -- yet remained throughout his life in Shonai and never traveled to Edo[[c:1]]. The dominant Washida lineage, by contrast, maintained a pattern of successive generations journeying to Edo to study under the Yanagawa school before returning to serve the Sakai house: the main line ran from the first head, Shinkodo Mitsutoki, through Kokodo Tokitaka, Kyukodo Mitsutoki, and the fourth head Shokodo Mitsuchika, with the latter's younger brother Kyozan Mitsunaka (1830--1889) bringing the school to its brilliant culmination. Other artisans drawn into this milieu include Horyusai Kosei, who fulfilled official commissions for the Sakai family, and Okada Tokio, originally of Sendai, who studied under Kono Shunmei before becoming a pupil of Washida Mitsutoki in Dewa. The collective technical vocabulary of the Shonai corpus centers on hira-zogan (flat inlay) executed in multiple varieties of colored metals -- gold, silver, shakudo, shibuichi, oborogin, and suaka -- applied over polished shakudo grounds (migaki-ji).
" Alongside the Washida manner, the corpus documents shakudo nanako-ji grounds bearing heraldic crests in gold iroe, as in Kosei's unified fittings for the Sakai house, and sukidashi-bori relief carving enriched with gold and silver iroe, as in Zaoya's tsuba with its interweaving of butterfly and ivy. The recurring guncho (swarm of butterflies) motif across multiple designated works exemplifies a design sensibility the examiners characterize as sharing affinities with the aesthetic consciousness of maki-e lacquer and yuzen dyeing -- a distinctly wayo (Japanese-style) decorative grammar[[c:4]]. The NBTHK examinations situate Shonai metalwork as a tradition in which "plain sincerity, graceful beauty, and unpretentious simplicity coexist[[c:7]]," and from which "many distinguished artisans" were produced[[c:5]]. The corpus attests both the formation of a regional school capable of absorbing Edo-derived technique and transforming it into a locally inflected vocabulary, and the achievement of individual masters -- above all Washida Mitsunaka, whose daishō tsuba pair received Tokubetsu-Juyo designation as "a masterpiece ... " From Zaoya's mid-Edo works channeling the manner of Chinkyu[[c:6]], through the Washida school's systematic absorption of Yanagawa and Kaga methods, to the formal heraldic programs executed for daimyo use, the Shonai tradition represents a sustained and coherent regional contribution to the late-Edo metalworking canon. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Arichika在哉 | 1670 | 1 |
| Mitsunaka光中 | 1670 | 3 |
| Tokio時雄 | 1670 | 1 |
| Horyusai Mitsuakira鳳龍斎光精 | — | 1 |
Certifies a genuine fitting worth preserving: a correct signature, or, if unsigned, an identifiable era and school, with recognized artistic and craft value.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.