| Value | 500 Lire |
| Material | Bimetallic : bronzital center in acmonital ring |
| Weight | 6.8 gr |
| Diameter | 25.8 mm |
| Thickness | 1.9 mm |
| Shape | Round |
| Subject | 1600th Anniversary of San Marino |
KM256 · SAN MARINO · 1990

| Value | 500 Lire |
| Material | Bimetallic : bronzital center in acmonital ring |
| Weight | 6.8 gr |
| Diameter | 25.8 mm |
| Thickness | 1.9 mm |
| Shape | Round |
| Subject | 1600th Anniversary of San Marino |
Coin