Sheets of Portugal, 1980
| Issuer | Date | Desc | State | ||
| - |  |
Portugal | 4/14/1980 | empty sheet (#1978) | incomplete |
| - |  |
Portugal | 5/6/1980 | empty sheet (#1979) | incomplete |
| - |  |
Portugal | 10/18/1980 | Lubrapex 80, sheet of 4 types | all added |
| Issuer | Date | Desc | State | ||
| - | |
Portugal | 4/14/1980 | empty sheet (#1978) | incomplete |
| - | |
Portugal | 5/6/1980 | empty sheet (#1979) | incomplete |
| - | |
Portugal | 10/18/1980 | Lubrapex 80, sheet of 4 types | all added |