Sheets of Portugal, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Portugal | 1/24/1990 | empty sheet (#7981) | incomplete |
| - |  |
Portugal | 1/24/1990 | empty sheet (#7982) | incomplete |
| - |  |
Portugal | 3/6/1990 | empty sheet (#7980) | incomplete |
| - |  |
Portugal | 4/11/1990 | empty sheet (#7983) | incomplete |
| - |  |
Portugal | 5/3/1990 | empty sheet (#7984) | incomplete |
| - |  |
Portugal | 9/21/1990 | empty sheet (#7985) | incomplete |
| - |  |
Portugal | 9/21/1990 | empty sheet (#7986) | incomplete |
| - |  |
Portugal | 11/7/1990 | empty sheet (#7987) | incomplete |