| Issuer | Date | Desc | State | ||
| - | |
Portugal | 3/16/1981 | sheet of 1 type | all added |
| - | |
Portugal | 5/11/1981 | empty sheet (#1981) | incomplete |
| - | |
Portugal | 6/13/1981 | sheet of 1 type | all added |
| - | |
Portugal | 8/28/1981 | sheet of 1 type | all added |
| - | |
Portugal | 12/16/1981 | empty sheet (#1982) | incomplete |
| - | |
Portugal | 12/16/1981 | sheet of 1 type | all added |