| Issuer | Date | Desc | State | ||
| - | no image | Burundi | 4/7/1971 | empty sheet (#43036) | incomplete |
| - | no image | Burundi | 4/7/1971 | empty sheet (#43037) | incomplete |
| - | no image | Burundi | 9/20/1971 | empty sheet (#43038) | incomplete |
| - | no image | Burundi | 10/8/1971 | empty sheet (#43039) | incomplete |
| - | no image | Burundi | 11/2/1971 | empty sheet (#43040) | incomplete |
| - | no image | Burundi | 11/2/1971 | empty sheet (#43041) | incomplete |
| - | no image | Burundi | 11/27/1971 | empty sheet (#43042) | incomplete |
| - | no image | Burundi | 11/27/1971 | empty sheet (#43043) | incomplete |
| - | no image | Burundi | 12/27/1971 | empty sheet (#43044) | incomplete |
| - | no image | Burundi | 12/27/1971 | empty sheet (#43045) | incomplete |