| Issuer | Date | Desc | State | ||
| - | no image | Maldive Islands | 1/10/1988 | empty sheet (#32863) | incomplete |
| - | no image | Maldive Islands | 2/15/1988 | empty sheet (#32864) | incomplete |
| - | no image | Maldive Islands | 2/15/1988 | empty sheet (#32865) | incomplete |
| - | no image | Maldive Islands | 5/9/1988 | empty sheet (#32866) | incomplete |
| - | no image | Maldive Islands | 7/7/1988 | empty sheet (#32867) | incomplete |
| - | no image | Maldive Islands | 7/16/1988 | empty sheet (#32868) | incomplete |
| - | no image | Maldive Islands | 7/20/1988 | empty sheet (#32869) | incomplete |
| - | no image | Maldive Islands | 7/30/1988 | empty sheet (#32870) | incomplete |