| Issuer | Date | Desc | State | ||
| - | |
Grenada Grenadines | 3/12/1980 | empty sheet (#26994) | incomplete |
| - | |
Grenada Grenadines | 4/14/1980 | empty sheet (#26995) | incomplete |
| - | |
Grenada Grenadines | 4/21/1980 | Olympics 1980, sheet of 1 type | |
| - | |
Grenada Grenadines | 10/7/1980 | empty sheet (#26997) | incomplete |