Tenpō Tsūhō
Japanese coin from the Edo period / From Wikipedia, the free encyclopedia
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The Tenpō Tsūhō (Japanese: 天保通宝; kyūjitai: 天保通寳 or 天保通寶) was an Edo period coin with a face value of 100 mon, originally cast in the 6th year of the Tenpō era (1835).[4][5] The obverse of the coin reads "Tenpō" (天保) a reference to the era this coin was designed in, and "Tsūhō" (通寳) which means "circulating treasure" or currency.[6] The Kaō is that of Gotō San'emon,[7] a member of the Kinza mint's Gotō family (後藤家), descendants of Gotō Shozaburo Mitsutsugu, a metalworker and engraver from Kyoto appointed by shōgun Tokugawa Ieyasu in 1600 to oversee the Edo mint of his shogunate and oversee its coinage.[8][9][10] All mother coins were produced in Edo (present day Tokyo) before they were sent to other mints where they would place the individual mint's mark (shirushi, 印) on the edge of the coin. The coin circulated for 40 years, and stopped being produced during the Meiji Restoration after the introduction of the Japanese yen. Today these coins are now sold as "lucky charms" as well as being collected by numismatists.
Value | 100 Japanese mon |
---|---|
Mass | 20.7 g |
Diameter | 49 (long) x 32 (wide) mm |
Thickness | 2.6 mm |
Edge | a shirushi (印) indicating the mint of origin. |
Shape | Ellipse |
Composition | |
Years of minting | 1835 - 1870[2] |
Catalog number | Standard Catalog of World Coins C#7.1 & C#7.2 |
Obverse | |
Design | 天保通寳 (Tenpō Tsūhō) |
Reverse | |
Design | 當百 (Tō Hyaku, equals 100), and the Kaō of Gotō San'emon.[3] |