Sheets of Cook Islands, 1970
| Issuer | Date | Desc | State | ||
| - |  |
Cook Islands | 3/12/1970 | Easter 1970, sheet of 4 types | all added |
| - |  |
Cook Islands | 6/12/1970 | royal family visit, sheet of 3 types | all added |
| - |  |
Cook Islands | 11/30/1970 | empty sheet (#19101) | incomplete |