Sheets of Portugal - Azores region, 1997
| Issuer | Date | Desc | State | ||
| - | no image | Azores region | 4/16/1997 | empty sheet (#24653) | incomplete |
| - |  |
Azores region | 5/5/1997 | Europa 1997, sheet of 3, 1 type | all added |
| Issuer | Date | Desc | State | ||
| - | no image | Azores region | 4/16/1997 | empty sheet (#24653) | incomplete |
| - | |
Azores region | 5/5/1997 | Europa 1997, sheet of 3, 1 type | all added |