was the Tokugawa shogunate's officially sanctioned copper monopoly or copper guild (za)Jansen, Marius. (1995). , citing John Whitney Hall. (1955). Tanuma Okitsugu: Forerunner of Modern Japan. which was created in 1636Schaede, Ulrike. (2000). Cooperative Capitalism: Self-Regulation, Trade Associations, and the Antimonopoly Law in Japan, p. 223. and (1701–1712, 1738–1746, 1766–1768).Shimada, Ryuto. (2005).
Initially, the Tokugawa shogunate was interested in assuring a consistent value in minted copper coins; and this led to the perceived need for attending to the supply of copper.
This bakufu title identifies a regulatory agency with responsibility for supervising the minting of copper coins and for superintending all copper mines, copper mining and copper-extraction activities in Japan.Hall, John Wesley. (1955) Tanuma Okitsugu: Forerunner of Modern Japan, p. 201.
See also Bugyō Kinzan-bugyō Kinza – Gold za (monopoly office or guild). Ginza – Silver za (monopoly office or guild). Shuza – Cinnabar za (monopoly office or guild)
Notes
References Hall, John W. (1955). Tanuma Okitsugu, 1719–1788: Forerunner of Modern Japan. Cambridge: Harvard University Press. OCLC 445621 Jansen, Marius B. (1995). Warrior Rule in Japan. Cambridge: Cambridge University Press. ; OCLC 422791897 Schaede, Ulrike. (2000). Cooperative Capitalism: Self-Regulation, Trade Associations, and the Antimonopoly Law in Japan. Oxford: Oxford University Press. ; OCLC 505758165 Shimada, Ryuto. (2005). The Intra-Asian Trade in Japanese Copper by the Dutch East India Company. Leiden: Brill Publishers. ; OCLC 62755669