| Location | Portugal |
| Year | |
| Type | Commemorative medals |
| Composition | Silver (.925) |
| Weight | 5.9 g |
| Diameter | 27 mm |
| Thickness | |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Edge | |
| Period | |
| Notice | |
| Reference(s) |
| Obverse description | Portuguese explorer Martim Afonso de Sousa (1500-1562) |
| Obverse lettering | MARTIM
AFONSO DE SOUSA - SÉC. XVI (Translation: Martim Afonso de Sousa - XVI century) |
| Obverse script | Latin |
| Reverse description | |
| Reverse lettering | RIO DA PRATA - 1531
NAU (Translation: Río de la Plata (also called River Plate) Nao) |
| Reverse script | Latin |
| Engraver | |
| Mintage | ND - - |
| Catalog ID | 3243866140 |
| Comments |
