Sheets of Thailand, 1998
| Issuer | Date | Desc | State | ||
| - |  |
Thailand | 1/10/1998 | empty sheet (#14176) | incomplete |
| - |  |
Thailand | 4/2/1998 | empty sheet (#14166) | incomplete |
| - |  |
Thailand | 4/13/1998 | empty sheet (#14167) | incomplete |
| - |  |
Thailand | 4/13/1998 | empty sheet (#14168) | incomplete |
| - |  |
Thailand | 4/13/1998 | empty sheet (#14169) | incomplete |
| - |  |
Thailand | 5/10/1998 | empty sheet (#14170) | incomplete |
| - |  |
Thailand | 7/19/1998 | International Year of the Ocean, empty sheet (#14171) | incomplete |
| - |  |
Thailand | 8/4/1998 | empty sheet (#14173) | incomplete |
| - |  |
Thailand | 9/5/1998 | empty sheet (#14172) | incomplete |
| - |  |
Thailand | 10/3/1998 | empty sheet (#14174) | incomplete |
| - |  |
Thailand | 11/15/1998 | empty sheet (#14175) | incomplete |