page_title: Tokugawa coinage
section_title: Tenpō Tsūhō
hierarchical_section_title: Tokugawa coinage / Structure / Tenpō Tsūhō
caption_attribution_description: English: Tenpo-tsuho-saikaku 日本語: 天保通宝本座細郭
context_page_description: Tokugawa coinage was a unitary and independent metallic monetary system established by shōgun Tokugawa Ieyasu in 1601 in Japan, and which lasted throughout the Tokugawa period until its end in 1867.
context_section_description: In 1835 the Tokugawa government started minting copper 100 mon named Tenpō Tsūhō (Kyūjitai: 天保通寶 ; Shinjitai: 天保通宝) as a way to solve its budgetary deficit, as the coin contained only 5½ as much copper as a 1 mon Kan'ei tsūhō this eventually lead to inflation. This was later followed by the Satsuma Domain issuing a 100 mon coin of their own in 1862 to supposedly produce currency for the Ryukyu Kingdom, while in reality doing it to boost their own economy. These Ryūkyū Tsūhō (琉球通寳) coins eventually started circulating in other provinces as well.
caption: A Tenpō Tsūhō (天保通寶) ellipse-shaped copper coin.
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