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| 正面描述 | Central square perforation surrounded by four large Chinese characters arranged in the cardinal positions, read in the traditional order: top, bottom, right, left. The four-character legend 皇宋通寶 (Hoàng Tống Thông Bảo) is rendered in regular script (kaishu) in raised relief. The characters are bold and well-spaced relative to the central hole. The coin features a plain raised inner rim encircling the square hole and a dotted or beaded outer rim bordering the coin's edge. |
|---|---|
| 正面文字 | 登录 以查看详情 |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | 登录 以查看详情 |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | Plain |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
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.