| Issuer | Date | Desc | State | ||
| - | no image | GuineaBissau | 1/15/1979 | empty sheet (#65840) | incomplete |
| - | no image | GuineaBissau | 4/12/1979 | empty sheet (#65841) | incomplete |
| - | no image | GuineaBissau | 9/3/1979 | empty sheet (#65842) | incomplete |
| - | no image | GuineaBissau | 12/10/1979 | empty sheet (#65843) | incomplete |