Isaac Newton 50 ¢ — Grenada, 1987
Isaac Newton (Grenada, 1987), face value 50 ¢, “Inventors 1987” series. Photo, catalogue value, details and photo identification.
- Series
- Inventors 1987
- Issue date
- 1987
- Face value
- 50 ¢
- Colors
- Multicolor
- Yvert
- GD 1439
- Michel
- GD 1687
- Stanley Gibbons
- GD 1708
- Scott
- GD 1535