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| 正面描述 | 登录 以查看详情 |
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| 背面描述 | Plain annular field with no inscription, device, or ornament. The reverse is entirely blank, displaying only the flat, slightly rough tin surface typical of cast coinage from the region, with a central round hole mirroring the obverse. The flan edges are irregular and unfinished, consistent with primitive casting techniques. |
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| 边缘 | Plain |
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| 附加信息 |
The Sultanate of Siak Sri Indrapura, positioned along the Siak River in eastern Sumatra, issued tin pitis as small-denomination currency during a period when the Dutch East India Company and later the colonial Dutch administration were steadily encroaching on local monetary authority. Tin was the practical choice — Sumatra had access to tin through regional trade networks, and the metal was too low in value to attract the systematic melting that plagued silver issues.
Surviving examples are frequently corroded or poorly struck, a known characteristic of the type rather than a condition anomaly.