| Issuer | Date | Desc | State | ||
| - | no image | Burundi | 4/5/1977 | empty sheet (#43086) | incomplete |
| - | no image | Burundi | 5/17/1977 | empty sheet (#43087) | incomplete |
| - | no image | Burundi | 10/10/1977 | empty sheet (#43088) | incomplete |
| - | no image | Burundi | 10/10/1977 | empty sheet (#43089) | incomplete |
| - | no image | Burundi | 12/9/1977 | empty sheet (#43090) | incomplete |
| - | no image | Burundi | 12/9/1977 | empty sheet (#43091) | incomplete |