300 Réis - Afonso VI Counterstamp 'Crowned 300' over '4 Reales - Felipe IV'
€1.00
| Issuer | Portugal |
| Year | 1663 |
| Type | Standard circulation coin |
| Value | 300 Réis (Reais) |
| Currency | Real (1517-1835) |
| Composition | Silver |
| Weight | 13.5 g |
| Dimensions | 32 mm |
| Thickness | |
| Shape and Technique | Round (irregular) Hammered, Countermarked |
| Orientation | Variable alignment ↺ |
| Engraver(s) | |
| In circulation to | 1686 |
| Reference(s) | Gomes#A6 46 |