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100 Réis - Afonso VI Countermark 'Crowned 100' over LXXX
| Issuer | Portugal |
|---|---|
| Year | 1663-1667 |
| Type | Standard circulation coin |
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| Reverse description | The reverse of the host coin displays the central legend 'IOIII' above 'LXXX' in bold Roman numerals, denoting the original denomination of 80 réis under João IV (João III type tostão). The inscription is set within a wreathed or foliate border, consistent with hammered Portuguese silver coinage of the period. The legends are struck in relief and remain largely legible despite the subsequent application of the obverse countermark and the worn condition of the flan. The overall design reflects the standard hammered tostão format of the Portuguese crown mints of the early-to-mid 17th century. |
| Reverse script | Latin |
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| Additional information |
Afonso VI's reign produced one of the more administratively chaotic coinage episodes in Portuguese history. Following the restoration of independence from Spain in 1640, the Crown faced chronic silver shortages and a fractured monetary supply — existing 80 Réis pieces were countermarked and revalued upward to 100 Réis rather than striking entirely new coin. The punch itself, a crowned numeral, was applied at the mint to circulating pieces already worn from use, which explains the frequently off-center placement collectors encounter on surviving examples.
Afonso VI was deposed by his own brother in 1667, the same year this countermarking program ended.