Sheets of Cook Islands, 1989
| Issuer | Date | Desc | State | ||
| - |  |
Cook Islands | 7/14/1989 | empty sheet (#19227) | incomplete |
| - |  |
Cook Islands | 10/4/1989 | empty sheet (#19228) | incomplete |
| - |  |
Cook Islands | 10/4/1989 | empty sheet (#19229) | incomplete |
| - |  |
Cook Islands | 10/4/1989 | empty sheet (#19230) | incomplete |
| - |  |
Cook Islands | 10/4/1989 | empty sheet (#19231) | incomplete |
| - |  |
Cook Islands | 11/24/1989 | empty sheet (#19232) | incomplete |