| Issuer | Date | Desc | State | ||
| - | no image | Ecuador | 7/9/1980 | empty sheet (#20762) | incomplete |
| - | no image | Ecuador | 7/9/1980 | empty sheet (#20763) | incomplete |
| - | no image | Ecuador | 7/9/1980 | empty sheet (#20764) | incomplete |
| - | no image | Ecuador | 7/11/1980 | empty sheet (#20765) | incomplete |
| - | no image | Ecuador | 7/28/1980 | empty sheet (#20766) | incomplete |
| - | no image | Ecuador | 7/28/1980 | empty sheet (#20767) | incomplete |
| - | no image | Ecuador | 9/21/1980 | empty sheet (#20768) | incomplete |
| - | no image | Ecuador | 9/21/1980 | empty sheet (#20769) | incomplete |
| - | no image | Ecuador | 10/9/1980 | empty sheet (#20770) | incomplete |
| - | no image | Ecuador | 11/25/1980 | empty sheet (#20771) | incomplete |
| - | no image | Ecuador | 11/25/1980 | empty sheet (#20772) | incomplete |
| - | no image | Ecuador | 11/25/1980 | empty sheet (#20773) | incomplete |