| Issuer | Date | Desc | State | ||
| - | no image | Guinea | 3/7/1989 | Halley's Comet in 1989, sheet of 1 type | |
| - | no image | Guinea | 5/3/1989 | Olympics 1992 in 1989, sheet of 1 type | |
| - | no image | Guinea | 7/7/1989 | Philexfrance '89, empty sheet (#29563) | incomplete |
| - | no image | Guinea | 7/7/1989 | Philexfrance '89, empty sheet (#29564) | incomplete |
| - | no image | Guinea | 7/7/1989 | Philexfrance '89, empty sheet (#29565) | incomplete |