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| Issuer | Empire of Vietnam |
|---|---|
| Year | |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Brass (Iron-bearing Brass (Magnetic)) |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
| Shape | Log in to see details |
| Technique | Log in to see details |
| Orientation | 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 |
| Obverse lettering | 皇宋通寶 (Translation: Hoàng Tống Thông Bảo) |
| Reverse description | Log in to see details |
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| Edge | Log in to see details |
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| Mintage | Log in to see details |
| Additional information |
Hoàng Tống Thông Bảo pieces occupy an odd corner of Vietnamese numismatic history — unofficial cash coins produced outside imperial mint sanction, likely by private casters working during the turbulent mid-to-late Nguyễn period. The iron content in the brass alloy is the tell: official imperial cash was cast to tighter compositional standards, and magnetic response in a coin of this type almost certainly points to workshop production beyond court oversight. Whether these circulated freely alongside official issues or served more localized exchange purposes remains debated.