Sheets of Cook Islands, 1973
| Issuer | Date | Desc | State | ||
| - |  |
Cook Islands | 4/9/1973 | empty sheet (#19151) | incomplete |
| - | no image | Cook Islands | 4/30/1973 | empty sheet (#75712) | incomplete |
| - | no image | Cook Islands | 4/30/1973 | empty sheet (#75713) | incomplete |
| - | no image | Cook Islands | 4/30/1973 | empty sheet (#75714) | incomplete |
| - |  |
Cook Islands | 6/1/1973 | 20th Anniversary of the Coronation of Queen Elizabeth II, empty sheet (#19152) | incomplete |
| - |  |
Cook Islands | 10/30/1973 | Christmas 1973, sheet of 5 types | all added |
| - | no image | Cook Islands | 10/30/1973 | empty sheet (#75715) | incomplete |
| - | no image | Cook Islands | 10/30/1973 | empty sheet (#75716) | incomplete |
| - | no image | Cook Islands | 10/30/1973 | empty sheet (#75717) | incomplete |
| - | no image | Cook Islands | 10/30/1973 | empty sheet (#75718) | incomplete |
| - | no image | Cook Islands | 10/30/1973 | empty sheet (#75719) | incomplete |
| - |  |
Cook Islands | 11/14/1973 | Royal Wedding 1973, sheet of 3 types | all added |