| Issuer | Date | Desc | State | ||
| - | no image | Nicaragua | 5/3/1980 | empty sheet (#28039) | incomplete |
| - | no image | Nicaragua | 5/3/1980 | empty sheet (#28040) | incomplete |
| - | no image | Nicaragua | 5/3/1980 | empty sheet (#28041) | incomplete |
| - | no image | Nicaragua | 5/3/1980 | empty sheet (#85963) | incomplete |
| - | no image | Nicaragua | 5/3/1980 | empty sheet (#85964) | incomplete |
| - | no image | Nicaragua | 7/19/1980 | empty sheet (#85965) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#28042) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | Literacy Year and Football World Cup, empty sheet (#28043) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#28044) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#28045) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#85966) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#85967) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#85968) | incomplete |
| - | no image | Nicaragua | 9/26/1980 | empty sheet (#85969) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#28046) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#28047) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#28048) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#85970) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#85971) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#85972) | incomplete |
| - | no image | Nicaragua | 9/30/1980 | empty sheet (#85973) | incomplete |
| - | no image | Nicaragua | 12/20/1980 | empty sheet (#85974) | incomplete |
| - | no image | Nicaragua | 12/20/1980 | empty sheet (#85975) | incomplete |