Tampang Tin Hat - Jiu Li

发行方	Sultanate of Pahang (Islamic states of Malaysia)
年份	1820
类型	Standard circulation coin
面值	登录以查看详情
货币	登录以查看详情
材质	登录以查看详情
重量	登录以查看详情
直径	登录以查看详情
厚度	登录以查看详情
形状	登录以查看详情
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正面描述	登录以查看详情
正面文字	Chinese/Arabic
正面铭文	登录以查看详情
背面描述	Plain, concave reverse displaying the characteristic deep square cavity at the centre, a structural consequence of the casting process used to produce these tampang hat coins. The reverse field is entirely unadorned, with rough, uneven tin surfaces reflecting the simple sand- or clay-mould casting technique employed. The stepped pyramidal form visible in profile is most apparent from this side, with the recessed void formed as molten tin contracted around the mould core during cooling.
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铸币厂	登录以查看详情
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附加信息	Pahang's tin hat money occupies a genuinely strange corner of monetary history. These cast pieces functioned as fractional currency in a sultanate whose economy ran almost entirely on tin mining — meaning the raw material and the money were, quite literally, the same commodity. The jiu li denomination designation reflects Chinese influence on the weights system, a consequence of the substantial Hakka mining labor population in the Pahang interior during the early nineteenth century. Casting quality varies dramatically across surviving examples, as production was never centralized in any meaningful way.

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