| Issuer | Date | Desc | State | ||
| - | no image | Burundi | 1/21/1966 | empty sheet (#43007) | incomplete |
| - | no image | Burundi | 11/4/1966 | UNESCO 20th, sheet of 7 types | |
| - | no image | Burundi | 11/4/1966 | UNESCO 20th, sheet of 7 types | |
| - | no image | Burundi | 11/4/1966 | empty sheet (#43010) | incomplete |