Sheets of Trinidad & Tobago, 1979
| Issuer | Date | Desc | State | ||
| - |  |
Trinidad & Tobago | 6/5/1979 | empty sheet (#9561) | incomplete |
| - |  |
Trinidad & Tobago | 7/3/1979 | 4th Latin American Geological Congress, sheet of 4 types | |
| - |  |
Trinidad & Tobago | 8/1/1979 | empty sheet (#9563) | incomplete |
| - |  |
Trinidad & Tobago | 10/4/1979 | empty sheet (#9564) | incomplete |