Catalog
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| Issuer | Empire of Vietnam |
|---|---|
| Year | 1140-1162 |
| Type | Log in to see details |
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| Composition | Log in to see details |
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| Diameter | 24 mm |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 大 寶 通 定 (Translation: Dai Dinh Thong Bao) |
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| Edge | Plain |
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| Additional information |
Đại Định was the reign title of Lý Anh Tông, who took the throne as a child in 1138 under the effective control of regent Đỗ Anh Vũ. The absence of a rim on this type has prompted debate among Vietnamese numismatists over whether it represents an officially sanctioned issue from the imperial mint or a privately cast piece — a distinction that was genuinely blurry during the Lý dynasty, when local casting of cash coins by merchants and regional authorities was difficult to suppress. Toda's catalog treats it cautiously, and the question remains unresolved.