| Issuer | Date | Desc | State | ||
| - | no image | Guinea | 8/3/1990 | Winter Olympics 1992 in 1990, empty sheet (#29566) | incomplete |
| - | no image | Guinea | 8/3/1990 | Winter Olympics 1992 in 1990, empty sheet (#29567) | incomplete |
| - | no image | Guinea | 8/3/1990 | Winter Olympics 1992 in 1990, empty sheet (#29568) | incomplete |
| - | no image | Guinea | 8/3/1990 | World Cup 1990, empty sheet (#29569) | incomplete |
| - | no image | Guinea | 8/3/1990 | World Cup 1990, empty sheet (#29570) | incomplete |
| - | no image | Guinea | 8/3/1990 | World Cup 1990, empty sheet (#29571) | incomplete |
| - | no image | Guinea | 8/3/1990 | empty sheet (#29572) | incomplete |
| - | no image | Guinea | 8/3/1990 | empty sheet (#29573) | incomplete |
| - | no image | Guinea | 8/3/1990 | empty sheet (#29574) | incomplete |
| - | no image | Guinea | 8/3/1990 | empty sheet (#29575) | incomplete |