| Issuer | Date | Desc | State | ||
| - | no image | Gabon | 1/6/1993 | empty sheet (#21863) | incomplete |
| - | no image | Gabon | 3/10/1993 | empty sheet (#21864) | incomplete |
| - | no image | Gabon | 6/9/1993 | empty sheet (#21865) | incomplete |
| - | no image | Gabon | 7/21/1993 | sheet of 4 types | all added |
| - | no image | Gabon | 9/15/1993 | sheet of 4 types | all added |