Sheets of Nauru, 1999
| Issuer | Date | Desc | State | ||
| - |  |
Nauru | 3/19/1999 | Australia '99, sheet of 5 types | all added |
| - |  |
Nauru | 7/20/1999 | 30th Anniversary of First Manned Landing on Moon, sheet of 1 type | all added |
| - |  |
Nauru | 8/21/1999 | China '99, sheet of 2 types | all added |