Sheets of Grenada, 1981
| Issuer | Date | Desc | State | ||
| - |  |
Grenada | 1/19/1981 | 50th Anniversary of Pluto, sheet of 1 type | all added |
| - |  |
Grenada | 1/19/1981 | 50th Anniversary of Pluto, sheet of 1 type | all added |
| - |  |
Grenada | 4/7/1981 | empty sheet (#18146) | incomplete |
| - |  |
Grenada | 4/28/1981 | empty sheet (#45331) | incomplete |
| - |  |
Grenada | 6/16/1981 | empty sheet (#18142) | incomplete |
| - | no image | Grenada | 10/1/1981 | Decade for Women, sheet of 1 type | |
| - |  |
Grenada | 10/13/1981 | empty sheet (#18147) | incomplete |
| - |  |
Grenada | 11/2/1981 | empty sheet (#18148) | incomplete |
| - |  |
Grenada | 11/12/1981 | Space Shuttle Project, sheet of 1 type | all added |
| - |  |
Grenada | 11/30/1981 | World Cup 1982, sheet of 1 type | |
| - |  |
Grenada | 12/10/1981 | empty sheet (#18149) | incomplete |