Guyana/ 25 Cents/ 1990
  |
| Material: | Weight: | Diameter: | Edge: | Alignment: |
| Copper-Nickel | 4.29 gr. | 20,42 mm. | Reeded. | Medal (0º) |
| Without Mint mark - The British Royal Mint |
|
| Material: | Weight: | Diameter: | Edge: | Alignment: |
| Copper-Nickel | 4.29 gr. | 20,42 mm. | Reeded. | Medal (0º) |
| Without Mint mark - The British Royal Mint |