Sheets of Australia, 1998
| Issuer | Date | Desc | State | ||
| - |  |
Australia | 1/21/1998 | empty sheet (#47418) | incomplete |
| - |  |
Australia | 5/26/1998 | empty sheet (#47419) | incomplete |
| - |  |
Australia | 8/6/1998 | empty sheet (#47420) | incomplete |
| - |  |
Australia | 10/1/1998 | Ocean Year, sheet of 6 types | incomplete |