Sheets of Palau, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Palau | 5/3/1990 | Prince Lee Boo's Visit from Palau to England, sheet of 9 types | |
| - |  |
Palau | 5/6/1990 | 150th Anniversary of world;s first postage stamp, sheet of 1 type | |
| - |  |
Palau | 8/10/1990 | Lagoon Life, sheet of 1 type | incomplete |
| - | no image | Palau | 12/7/1990 | 46th Anniversary of U.S. Action in Palau Islands during Second World War, sheet of 1 type |