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The tri-metallic Tokugawa coinage system based on copper Mon, silver Bu and Shu, as well as gold Ryō. The Tokugawa shogunate (徳川幕府, Tokugawa bakufu), also known, especially in Japanese, as the Edo shogunate (江戸幕府, Edo bakufu), was the feudal military government of Japan during the Edo period from 1600 to 1868.
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