Traditional crafts in Japan have a long tradition and history. These are handicrafts produced by an individual or a group, as well as work produced by independent studio artists working with traditional craft materials and/or processes (Wikipedia). The Minister of Economy, Trade and Industry has designated handicrafts that meet the conditions under the “Law Concerning the Promotion of the Traditional Crafts Industry” as “Traditional Crafts” (https://www.japan-kogei.com/dento-about-eng.html, https://www.japan-kogei.com/index-eng.html).
In Yamanashi Prefecture, three items are designated as “Traditional Crafts”: Koshu Crystal and precious stone carving, Koshu Inden (lacquered deer leather) and Koshu hand-carved seals. And also, the Government Office of Yamanashi Prefecture has designated 13 items as “Traditional Crafts of Yamanashi,” including the three nationally-designated Traditional Crafts. The 10 items are Amehata Koshu ink-stone, Koshu Oishi Tsumugi (silk) woven fabric, Nishijima Handmade Washi (Japanese paper), Koshu warrior/carp streamers, Koshu Oni (demon) tile, Parent and child daruma doll, Ichikawa Daimon Handmade Washi, Jewelry of Yamanashi (Yamanashi gem cutting), Fuji-Katsuyama suzutake bamboo crafts and Koshu Fireworks.
KOSHU PRIDE
(https://kogeijapan.com/locale/en_US/list/?pref=19),
(https://www.pref.yamanashi.jp.e.aao.hp.transer.com/shouko/kogyo/jibasanpin/index.html),
(https://hq-yamanashi.jp/article/a00182/)
FYI
(https://kogeijapan.com/locale/en_US/), (https://www.galleryjapan.com/locale/en_US/)