Tenpo Tsūhō

Japanese: 天保通宝 - てんぽうつうほう

[Noun] An oval copper coin issued from 1835 ( Tenpo 6 ) in the Edo period. With the characters "Tohyaku" on the back, it was circulated as the first 100-mon currency in Japan, but because its actual value was too low compared to the 1-mon and 4-mon coins, its value in the market gradually dropped. It weighed 5 momme 5 bu (20.6 grams). It was used in parallel with the new style currency even after the promulgation of the New Currency Ordinance in 1871 ( Meiji 4 ), but in December of that year the circulation of the new "8 rin" coin was regulated, and in 1891 its circulation was banned. Tenpo Tsuho Sen. Tenpo Sen. [Taihei Nenpyo - Ogosho, October 1st, 1835 (Tenpo 6) (Kojiki Ruien, Senka 1)]

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙江戸時代、天保六年（一八三五）から発行された長円形の銅銭。裏面に「当百」の文字があり、日本ではじめての百文通貨として流通されたが、一文銭や四文銭と比較して実価が低すぎるため次第に市場での価値をおとして行った。重量五匁五分（二〇・六グラム）。明治四年（一八七一）新貨条例公布後も新式貨幣と併行して使われたが、その年の一二月に新貨「八厘」通用を規定され、同二四年に通用を禁止された。天保通宝銭。天保銭。〔泰平年表‐大御所・天保六年（1835）一〇月一日（古事類苑・泉貨一）〕

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