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| 正面描述 | The crowned royal arms of the United Kingdom of Portugal, Brazil and the Algarves occupying the central field, depicting the Portuguese armillary sphere encircling the traditional quinas shield, surmounted by an ornate crown. The peripheral legend reads JOANNES VI DEI GRATIA in Latin, separated by small floral ornaments, running clockwise around the coin's border. |
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| 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 | PORTUGALIÆ·BRASILIÆ·ET·ALGARB·REX 18 X 24 |
| 边缘 | 登录 以查看详情 |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
João VI issued this copper série from Lisbon while still technically ruling from Rio de Janeiro — he had fled the Napoleonic invasion in 1807 and didn't return to Portugal until 1821, governing the empire from Brazil for over a decade. The coins struck in his name on the Iberian side during this period reflect a metropolitan mint operating under considerable administrative strain, with the king himself an ocean away.
Dies from this run show notable inconsistency across the emission years, a direct consequence of reduced technical oversight during the constitutional upheaval following the Liberal Revolution of 1820.