Sheets of Thailand, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Thailand | 6/29/1990 | empty sheet (#14024) | incomplete |
| - |  |
Thailand | 6/29/1990 | empty sheet (#14025) | incomplete |
| - |  |
Thailand | 10/7/1990 | International Letter Writing Week 1990, sheet of 4 types | all added |
| - |  |
Thailand | 10/7/1990 | International Letter Writing Week 1990, empty sheet (#14027) | incomplete |
| - |  |
Thailand | 11/15/1990 | New Year 1991, sheet of 4 types | all added |
| - |  |
Thailand | 11/15/1990 | New Year 1991, empty sheet (#14029) | incomplete |
| - |  |
Thailand | 12/29/1990 | Steam Locomotives 1990, sheet of 4 types | all added |
| - |  |
Thailand | 12/29/1990 | Steam Locomotives 1990, empty sheet (#14031) | incomplete |