![]() ![]() In AD 30, a ditty was sung by the youths of Sichuan: "The yellow bull! the white belly! Let Wu Zhu cash coins return". The Iron Wu Zhu's of Chengjia, which resemble the Western Han dynasty Wu Zhu coin, is attributed to Gongsun Shu, who rebelled in Sichuan in AD 25, and issued iron coins, two being equal to one Jian Wu Wu Zhu (Chinese: 建武五銖 pinyin: jiàn wǔ wǔ zhū). Ban Liang cash coins Īn iron Wu Zhu (五銖) cash coin attributed to Gongsun Shu's Chengjia state. Iron cash coins were produced during the Han dynasty, Three Kingdoms period, Northern and Southern dynasties period, Five dynasties and Ten kingdoms period, Song dynasty, Jin dynasty (1115–1234), Western Xia dynasty, Ming dynasty, and Qing dynasty, but not during the Zhou dynasty, Jin dynasty (266–420), Sui dynasty, Tang dynasty, Liao dynasty, and Yuan dynasty periods. The mechanical strength of the cast coinages was thus reduced, but in the case of coins this was not as important as with tools as they did not serve any practical means other than their commodity value. Sometimes bronze coins that were cast had a certain amount of iron in them, but in these cases the iron was not mixed into the copper-alloy itself, as it was just not removed during the production process, for example with some Warring States period round hole coins with the inscription "Yuan" (垣) which was made of about 30% iron. Over the course of Chinese history a number of monarchs had tried to introduce iron cash coins to the market, but as their subjects never took to them, most of these attempts to issue them were rather short-lived. In Japan iron Kan'ei Tsūhō (寛永通寳) cash coins were produced by the Kamedo mint in the 1760s. Iron cash coins were not exclusively produced by the Chinese, as other cash coin producing countries would also issue them under similar circumstances or by private mints. The last government attempt at issuing iron cash coins occurred during the 1850s the under the reign of the Manchu Qing dynasty. The largest number of iron cash coins would be produced during the Song dynasty period as a result of a scarcity of copper and high military expenditures, among other reasons. While the earlier recorded iron cash coins in Chinese history were Wu Zhu's (五銖, 118 BC–618 AD), the unearthing or iron Ban Liang (半兩) cash coins produced during the Western Han dynasty during the 1950s indicates that they may have been much older than first thought. Iron cash coins were often produced in regions where the supply of copper was insufficient, or as a method of paying for high military expenditures at times of war, as well as for exports at times of trade deficits. Iron cash coins ( traditional Chinese: 鐡錢 simplified Chinese: 铁钱 pinyin: tiě qián Vietnamese: Thiết tiền) are a type of Chinese cash coin that were produced at various times during the monetary history of imperial China as well as in Japan and Vietnam. An iron Daguan Tongbao (大觀通寶, 1107–1110) cash coin produced during the reign of Emperor Huizong in the Song dynasty period. ![]()
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