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1 Cash - "Strange guo Tang Guo" group / Yi Guo Tang Guo Shou 異國唐國手
| Issuer | Empire of Vietnam |
|---|---|
| Year | 1695-1725 |
| Type | Log in to see details |
| Value | 1 Cash |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| In circulation to | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Chinese (traditional, running script) |
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| Reverse description | The reverse is entirely plain, displaying only the flat field between the inner rim of the square central perforation and the raised outer rim. No inscriptions, symbols, or decorative elements are present. The surface shows a uniform green patination over the copper substrate, characteristic of long-circulated or buried cast cash coins of Vietnamese issue. |
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| Additional information |
The "Yi Guo Tang Guo Shou" cash pieces occupy a genuinely contested corner of Vietnamese numismatic scholarship. The designation "Yi Guo" — roughly "foreign state" — has prompted longstanding debate over whether these were struck by the Vietnamese court itself for tribute or border-trade purposes, or produced by Chinese merchants operating outside official mint sanction during the fractured Lê dynasty period. The Nguyen lords in the south and Trinh lords in the north maintained effectively separate monetary systems through this period, and attribution to either apparatus remains unresolved.