Sheets of Uruguay, 1998
| Issuer | Date | Desc | State | ||
| - | no image | Uruguay | 1/15/1998 | empty sheet (#25607) | incomplete |
| - | no image | Uruguay | 5/12/1998 | empty sheet (#25608) | incomplete |
| - |  |
Uruguay | 5/15/1998 | empty sheet (#25609) | incomplete |
| - | no image | Uruguay | 9/14/1998 | empty sheet (#25610) | incomplete |
| - | no image | Uruguay | 11/6/1998 | empty sheet (#25611) | incomplete |